There are a lot of kayak and canoe rentals on the region, typically associated with good places to go. I've listed a few, mainly just to test software. If you have a store or business and you'd like to be listed here, contact me.
The problem with scupper carts is that they always seem to need a third hand to set up, and that hand is usually attached to someone else, in which case you don't really need a scupper cart, do you? Newer models have a built-in kickstand that looks so useful, it got me thinking. For twelve dollar's worth of plumbing parts at Home Depot, I made this.