We have a red inflatable horse from this company that we bought a few years ago and it's one of those toys that we use every day. Both kids love it but my oldest is growing up a bit to really enjoy it to the fullest. He chose this one. His size is in the 4th and 90th percentile and I would say that size is close to perfect. Lots of room to grow and use, but not too big for him. If I were buying for an average height 3 year old I would definitely choose 15 inches. For the younger ones I would recommend the horse form. red horse (feels like thick vinyl). It seems sturdy enough, but I don't think I'll be using it outdoors. It's worth the price (about $10).
Pogo Fun For Kids: Geospace Jumparoo Boing JR. Pogo Stick By Air Kicks - Small Size For Children 50-90 Lbs (Purple)
28 Review
Geospace Jumparoo Boing! Pogo Stick (60-100 Lbs, Ages 8 & Up, Medium Size), Assorted Colors
36 Review
Get Your Kids Hopping With WALIKI'S Green Hopper Ball For Ages 3-6 Therapy And Fun!
37 Review
Jump Into Fun With The AppleRound Space Hopper Ball: 28In/70Cm Diameter For Ages 13 And Up
36 Review
Zippered FoxPlay Basketball Ball Pit: Unleash Fun and Excitement!
9 Review
Fun And Safe Playtime With PlayMaty 100 Colorful Pit Balls For Kids
30 Review
Dynamic Movement Sensory Sox For Kids 6-9 Years - Updated Version, Medium, 47''LX27''W Green By Sanho
22 Review
Unicorn Little Girls Makeup Kit - Real Washable Makeup, Powder, And Lipsticks For Kids Toddlers, Perfect For Princess Birthday And Christmas Gifts
18 Review