This plastic bottles used to hold cat litter was perfect for making these bottle mazes. Each side has a different maze pattern, but they all encourage moving top to bottom and across, just like the ones older children use with pencil and paper.
I cut different curvy paths on each side of the bottle. The hearts are made by cutting the heart shape out of plastic (in this case Tide detergent bottle) with an extended plastic piece at the bottom. You can't see it, but the extended piece is folded against the heart. I punched holes in both the heart side and the extended plastic piece side and then connected them with a paper fastener at the tip.
I can easily remove the hearts and use other shapes such as fish that will move down stream or cars on a road.The children were also happy to help me decorate the bottle with stickers.