I've seen some over the years one was made of some tough waterproof cotton, (called ironwear), with leather re-enforcement. Bob Allen I think. Most were novelty items, odd and worthless like the old joke "canoe hat", down tampons for the ladies, and most fishing lures. You might try a specialty manufacturer like "Working Mule" made by Amish in Pa. to see if they would customize one for you. Used to be you could get stuff made by Wick Outdoor Works in Montgomery City, Mo. but I think they are out of business now.