This code generates random coordinates and a random number from 1 to 9 then pastes it in a random location on the home screen, eventually filling almost the entire thing. The only way to stop is to hit ON. This only works on a TI-83+ or with a calculator that has the same screen size.
Nice! It would be nice for the program to detect placements that have not been taken, and place them only in the untaken spots but ehh, it's basic after all.