I have only made pouch slings so far..but a ring sling is next on my list. Check out these sites they are extremely helpful. The Babywearer forum has a DIY section where you can find lots of help and the other site has lots of sling patterns and instructions.
I love the pattern tissue chair. It is really appealing...and then you realize what it is and its even more genius!!! I want one for my sewing room one day. What did you use to apply the paper...modge podge?