Update:
Sprites are now 4-level masked.

Posted are the slender image, the tree image, and the page image. Below is the bitmap for each. The data is formatted with one byte of the mask, followed by one byte of layer 1, then one byte of layer 2, then rinse and repeat for the whole sprite.

Slender:
.db %11111100,%00000001,%00000000 \ .db %00111111,%10000000,%00000000
.db %11111000,%00000010,%00000110 \ .db %00011111,%01000000,%00000000
.db %11111000,%00000100,%00000000 \ .db %00011111,%01000000,%01100000
.db %11111000,%00000110,%00000000 \ .db %00011111,%00000000,%00100000
.db %11111000,%00000011,%00000010 \ .db %00011111,%10100000,%00100000
.db %11111100,%00000011,%00000000 \ .db %00011111,%10000000,%01000000
.db %11110000,%00001110,%00000010 \ .db %00001111,%10010000,%01000000
.db %11100000,%00111101,%00000110 \ .db %00000111,%10011000,%01110000
.db %11000000,%00111111,%00011111 \ .db %00000111,%11111100,%01111000
.db %11000000,%00111111,%00011111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00111111,%00111111 \ .db %00000011,%11101100,%11111100
.db %11000000,%00110011,%00111111 \ .db %00000011,%11111110,%11111100
.db %10000000,%00110011,%00110111 \ .db %00000001,%11110110,%11111100
.db %10000000,%01100011,%00110111 \ .db %00000001,%11100110,%11101100
.db %10000000,%01100111,%00110111 \ .db %00000001,%11100110,%11100110
.db %10000000,%01110111,%00110111 \ .db %00000001,%11100010,%11100110
.db %10000000,%01110111,%00110111 \ .db %00000001,%11100010,%11100110
.db %10000000,%00100111,%00100111 \ .db %00000001,%11100010,%11100110
.db %10000000,%00100111,%00100111 \ .db %00000001,%11100010,%11100110
.db %10000000,%00101111,%01100111 \ .db %00000001,%11100010,%11100110
.db %10000000,%00101111,%01100111 \ .db %00000001,%11100010,%11100110
.db %10000000,%01101110,%01100111 \ .db %00000001,%01110010,%11100110
.db %10000000,%01100110,%01100111 \ .db %00000001,%01110010,%11100110
.db %10000001,%01100110,%01100110 \ .db %10000001,%01110110,%01100110
.db %10000011,%01100100,%01101110 \ .db %11000001,%00110110,%01100110
.db %10000011,%11100100,%01101110 \ .db %11000001,%00100110,%01100110
.db %10000011,%11001100,%01101110 \ .db %11000001,%01100000,%01100010
.db %10000011,%00001110,%01101110 \ .db %11000001,%01100000,%01110010
.db %11110011,%00001110,%01101110 \ .db %11001111,%00110000,%00110010
.db %11110011,%00001100,%00001100 \ .db %11001111,%00110000,%00110000
.db %11110011,%00001100,%00001100 \ .db %11001111,%00110000,%00110000
.db %11110011,%00001100,%00001100 \ .db %11001111,%00010000,%00110000
.db %11110011,%00001100,%00001100 \ .db %11001111,%00010000,%00110000
.db %11110011,%00001100,%00001100 \ .db %11001111,%00010000,%00110000
.db %11111111,%00000100,%00000000 \ .db %11111111,%00010000,%00000000

Tree:
.db %11110000,%00000111,%00001000 \ .db %00011111,%11100000,%00100000
.db %11110000,%00000111,%00001000 \ .db %00011111,%11100000,%00100000
.db %11110000,%00000111,%00001000 \ .db %00011111,%11100000,%00100000
.db %11110000,%00000111,%00001000 \ .db %00011111,%11100000,%00100000
.db %11110000,%00000111,%00001000 \ .db %00001111,%11010000,%00110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%11010000,%00110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%11010000,%00110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%11010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%10010000,%01110000
.db %11100000,%00001111,%00010000 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001110,%00010001 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001110,%00010001 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001100,%00010011 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001100,%00010011 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001101,%00010011 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001101,%00010011 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001000,%00010111 \ .db %00001111,%00010000,%11110000
.db %11100000,%00001000,%00010111 \ .db %00001111,%00010000,%11110000
.db %11000000,%00011000,%00100111 \ .db %00000111,%00111000,%11111000
.db %11000000,%00011000,%00110111 \ .db %00000111,%00111000,%11111000
.db %11000000,%00000010,%00111111 \ .db %00000111,%01111000,%11111000
.db %11000000,%00000010,%00111111 \ .db %00000111,%01111000,%11111000
.db %11000000,%00000000,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00000000,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00000001,%00111111 \ .db %00000111,%11011000,%11111000
.db %11000000,%00000001,%00111111 \ .db %00000111,%11111000,%11011000
.db %11000000,%00000011,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00000011,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00000111,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00011111,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00111111,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00111111,%00111111 \ .db %00000111,%11111000,%11111000
.db %11000000,%00111111,%00111111 \ .db %00000111,%11111000,%11101000
.db %11000000,%00111111,%00111111 \ .db %00000111,%11111000,%11111000
Page:
.db %11111111,%00000000,%00000000
.db %11000011,%00000000,%00000000
.db %10000001,%00001000,%00001000
.db %10000001,%00110000,%00110000
.db %10000001,%00001100,%00001100
.db %10000001,%00110000,%00110000
.db %10000001,%00000100,%00000100
.db %10000001,%00011000,%00011000
.db %10000001,%00000000,%00000000
.db %11111111,%00000000,%00000000

As programming for TI-Slender nears the last few things to be done, I still find myself short sprites and a map. I already have a Slenderman sprite and a page sprite. What i do need is:

1. A tree
2. A creepy tree
3. A car
4. A truck
5. A shack-like building

Sizes are up to the maker's discretion, but keep in mind they need to be in memory as the largest possible instance (viewed from very close up). They may be drawn normally, I will create the masks for the darkness myself. Anyone willing to assist can comment this thread and even upload to this thread, or email me at [email protected]. Please include information for credit to be given to you.

Also, any good map makers in the house?