i made these knitted balls 2 years ago for my youngest son. he went through this phase where he wanted to throw everything at everyone and everything. that inspired these. i emailed this picture to the same company and they loved those too. my son still plays with these too. he plays basketball with these too. they teach hand-eye coordination, and if he misses his mark, no harm done. no broken windows or tvs.
if anyone wants the pattern, let me know.