To make a river stone mat first you have to gather or purchase river stones. After that take a plastic mat and arrange all the stones on it. Then stick all the stones one by one to the plastic mat by using silicone sealer. Let the sealer dry completely.
I love these ideas for repurposing wooden hangers. While they are probably best as hangers these ideas to give them another useful life are great. ReFab Diaries: Repurpose: Hang on to your Wood Hangers!