Mason Jar Superhero Banks by Fireflies and Mudpies
Box has photo of what teen is saving up for. Put slit in box and add some money.
Easy DIY Lego Crafts | Cute And Creative Crafts by DIY Ready at http://diyready.com/11-fun-diy-lego-crafts-to-make/
Encourage hand washing for kids by making a little more fun. I wonder if this would work with Joe too.