Crazy-black-and-green-laser-knives aren’t meant to be handled by little ones.

Also, another Video Game Kickstarter a reader reminded me of: Shantae, Half-Genie Hero. Looks fun!

The sculpting tool only LOOKS like a blade. It's blunted, and lighter than it looks. Also, hitting or trying to carve something with it would probably chip and break it. It can also be difficult to control properly for the inexperienced user, but at a certain level of craft you can make both big sweeping cuts with it as well as smaller fine-tuned polishes.