Some Kid's Puzzles

My Mum bought a few kid's puzzles at a yard sale for when her little not-grandbaby (she just claims he is, lol!) comes to visit.  He's three and loves puzzles, especially ones that are above his age group.  She asked me to work them first to make sure all the pieces are there, so you will be seeing them for the next few days. I've done two so far and put the rest back for later.

This is the first: