This is a wonderfully heartfelt project! I love to make recycleables that are actually useful, and this fits in so well with an old family tradition that goes something like this - The box is always better than the toy inside.
Basically we prefer to 'invent' or transform our own fun than to have pre-packaged fun. Blessings to you and your family ;)
Don't understand how come I missed your comment... Yeah, we like making stuff too, my son and I always have some ideas for tiolet paper carton rolls and stuff ))) ahaha, so much fun!
So cool! I know that your son is going to benefit from the interaction and care you take in engaging with him!