Question: fun things to do with baby rabbits?
Answer: Let them roam around. One of the best (and easiest) ways to give your bunny a little environmental enrichment is just to make sure that they get some time outside of their cage. ... 
Cut up some cardboard. ... 
Make a bunny tunnel. ... 
Find and forage. ... 
Dig some dirt. ... 
Mark their territory. ... 
Play with toys. ... 
Stretch it out.