I've got a question for you.
I've got one of these Mantis tarp/tents
and I'd like to have side curtains for the open mesh sides. I'm thinking sil nylon and either sewn on or maybe with velcro on the tent and the other half sewn on the curtains so they could be totally removed if needed. Maybe even add a couple of clear plastic windows made of that durable kiind that some tents have in the fly.