This is super easy and so much fun. The best part is that you don't need to buy anything to do it.
What you need:
A small empty plastic bottle.
An elastic band.
Dish washing soap and water.
A container.
A piece of cloth.
Scissors.
Cut off the bottom part of the plastic bottle.
Place a piece of cloth above the open bottom part.
Put the elastic band around the cloth to hold it in place.
Put dish washing liquid in a container and add water. Dip the end of the bottle with the cloth in the container.
Start blowing through the mouth part of the bottle and the bubble snake will start being formed.
Keep blowing.....
This is an easy fun activity which the kids will love. Not too messy, easy to do and you don't need to prepare anything. My kids really enjoyed it and it kept them busy for a while.