Soapy Marble Maze Bag

I've been interested in making mazes this week, so here's another one.

I like this one because it seems to really use fine motor skills to get the marble through the maze. Mine is very simple, having only one path to follow, but you could make the maze much more difficult if you wanted to. I've tested this maze all morning without any leaks or problems, so it seems durable enough.

I made it by rolling up pieces of duct tape and putting them into a gallon zip lock bag. I then squeezed in some old shampoo that I didn't like and had laying around, and some food colouring. I moved the shampoo through the maze of duct tape so the bag would be lubricated well, and then added the marble amd sealed the bag. I taped the bag shut for extra security.