I love this bicore with five “slavecores” caterpillar BEAM bot. It is a photovore (light-seeker) with two operating speeds and rechargeable Li-Ion batteries (via USB). The builder has an Etsy shop too where you can buy his bots.
Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy person’s memoir,” called Borg Like Me.