I made one up about 2 weeks ago I wanted to see how hard it would be. I'm happy how it turned out.
What you'll need to do one yourself for an Unlimited:
Access to a sewing machine (you could sew it by hand but it'd take a while.)
1 hammer (what quality Jeep mod doesn't involve a hammer as some point)
1.4 m of shade cloth, I went with 50-70% as the 90% felt and looked terrible. For the Unlimited 1800 mm wide is perfect.
1 grommet kit (9 grommets)
2 bags of tarp tiedowns (4 in each bag)
1 releasable cable tie.
You really only need a width of about 1.2 m to cover the Jeep but you need to add a seam down each side to neaten the whole thing up and to give the grommets something to hold onto or they will pull through. Also add some reinforcing to the one at the front that attaches to the footman's loop by the cable tie. All up it takes about an hour to knock one up and about $30 for stuff from Bunnings and some decent poly thread that is UV stable.
Fit it using the same method as the Spiderweb shade.
The result