When it comes to kid inventions, there’s a fine line between brilliant and cray. From a piggyback-ride-helper to gaming sneakers, here’s the stuff that caught our eyes. Whether they’re of any use to your family—well, we’ll let you be the judge.

Hang in There

A grimy public restroom and baby's hands are like opposites attract. This infant carrier hooks onto the stall wall in most public restrooms so that you can go potty in peace, not worrying whether Junior got a hold of some grout or used TP.

Available at mommysentials.com, $39.99.

Do you own an interesting kid invention? Tell us about it in the comments section below. 

—Ayren Jackson-Cannady