My daughter loves anything messy. She'll find the tiniest spot of mud in the grass and find a way to cover herself in it. So when I saw this slimy flubber activity, I knew that the kids (and neighbors' kids) were in for a gooey-good time!
Borax (sodium tetraborate) is a naturally-occurring mineral salt commonly used as a laundry booster or cleaner. As with any other cleaning product, it should be kept away from children not under direct supervision of an adult. Do not allow children to ingest Borax. If consumed, contact a poison control center immediately. Wash hands after play, as prolonged skin exposure may cause irritation.
You can use strawberry baskets, but I had this great shopping basket, so we tied this up in our tree and poured the flubber in it. Then I gave the kids children's scissors so they could try cutting the flubber. We put a tub underneath the basket to catch the flubber. Once the flubber ran it's course, we just took the tub and dumped it all back into the basket.
You can just see how much fun my daughter is having with the flubber. I think in the end, the girls ended up getting most of the flubber on them! If the flubber gets on your kid's clothing, I recommend soaking the clothes in warm water for 20-30 minutes to loosen up the glue before sticking it into the washing machine. This is definitely a bit on the messy side, but it's definitely worth it considering how much fun these kids had playing with flubber!