Word Bubbles game

Spent a lot of time playing this game today (and found myself being quite competitive!)...
The premise is dead simple; you're given a three-letter stem and have to find as many words as possible starting with this stem.
Could be useful for helping students improve their spelling (laptop on one lap, dictionary on the other!).
Going to try it in class on Wednesday morning (another 2 full days off... how many more of that game am I going to play?!)

Simple and addictive
http://www.instructables.com/community/Lumosity_Word_Bubbles_Game/

Have fun!