I have the 12x12 guide gear tarp, and I'd like to add center tie-outs to use it in winter mode. I read the threads on adding them. Problem is, I can't sew, I don't have any fabric, and I'm terrible at DIY (see signature). Is there a easy, cheap way to do it? Would a simple grommet punch work? I'm considering just using a larks head around a ball on each side (temporary is ok).

Any advice is appreciated.