We did a test ice bag at the beginning of the week, just to make sure our twist on the idea would work out. It did, but the color separated and sank to the bottom after a day. "Ok", we said to ourselves. "We'll just fill all the bags the day before the event, then we'll be safe!"
Well....the photo below is what we got..haha. They didn't freeze all the way. Not quite what i was going for, but i guess they are like little colored ice sculptures? Whatever, we rolled with it.