I see where this is going....Use the hole for snap on accessories! For example, a molded part so that people can do that mod that uses tent poles for tarp spreaders. Or a receiver for hiking poles for quick porch mod, or a camera mount, or a flash light that gets recharged by the shaking of the tarp.
"While he lives, he must think; while he thinks, he must dream." --Isaac Asimov (The Complete Stories, 1990)