| I wouldn't do it. I remember this fundraiser from high school, and I thought it was dumb then too. Good cause, bad idea. Going 30 hours without food isn't really a good idea for any growing teenager, much less one with diabetes. I know even though my basals are fine, I trend low and feel like junk if I go too long without a real meal. Plus, it will deplete glycogen supplies and put him at risk for more severe lows the next few days as well. Starvation ketones aren't really a concern if they'll be drinking juice though.
I'd rather see teenagers raking yards or doing some kind of walk to raise money, but that's just me. | 
