What is a good indestructible iPad case for toddlers?
Check out OtterBox's Defender product line. I don't own any of their products, but I've heard from others that they're close to indestructible. 

More details &amp; reviews:


Tough Guys Rock the OtterBox (OtterBox Blog)
OtterBox Releases Heavy Duty Defender iPad Case (CrunchGear)
OtterBox's Defender Case puts your iPad in a Batman Suit (ZDNet)
Otterbox Defender iPad case review: Best rugged case money can buy (Mobile Magazine)
OtterBox Defender for iPad: When You Need Fully Body Protection (Gear Diary)