Some residents focus on textures with a constant circular rubbing. A blanket with blocks of different textures (corderoy, minki, satin, velvet etc.) would be helpful along with the zippers buttons and button hole plackets for them to focus on otherwise they tend to undress themselves.
For my underground railroad program my friend and I made 12 blocks with the pattern pieces haveing textures as varied as what I've mentioned pluse fake fur. My intention was to 'show' the blind residents the blocks. The same idea would work for fidget blankets. ;) I hope I've helped you on your loveing venture. Thank you for your effort :thumbup: