Cedar plank shower mat
I wanted a mat that I would be able to sit in grass, sand, or mud that could just be washed off (or not) and stowed. My idea was to get a little higher off the ground than a regular mat so water won't pool at your feet.
Needed: 3-4 1x2 Cedar trim boards, cut in to 24" pieces. $3.50/per at Home Depot/Lowe's
Decent synthetic rope that will melt when heated (to hold the knots)
2 +/- ft. of 1/2 PVC, PEX or similar pipe. I used white PEX from Lowe's left over from my water heater project
Cut boards in to 24" lengths and drill them equally with a drill press, finished on a belt sander
Singe rope on one end and feed through, with 1/2" PEX pieces between
Knot ends as tightly as you can and melt them a little with a torch or lighter. Be careful here! Cedar board is very dry and you'll ugly up your boards with burns if you aren't careful. Ask me how I know.
First time I assembled this I just knotted the rope between each plank, and it rolled all over the place under my feet. The boards standing on end vs. laying flat is important to add enough height to stay out of the goop, so the PEX and really tight rope works perfectly. Holds my 200 lbs. without moving around at all now.
The tall boy is for reference only, and for later. Being cedar this mat is pretty light and will store easily in a roof box or Trasharoo, that way you don't have to worry about cleaning it or drying it after every use.