I'm going to start by saying that I don't consider myself to have a ton of techniques in my back pocket. They're more little tips and tricks...
That said I want to share a little paper flower I made for this page.
I've often made the little paper lollies... you know the ones... they're just a stack of different sized circles on top of each other. I wanted to see what kind of dimension I would get if I layered tissue paper in them as well.
Start by cutting a series of different sizes of patterned paper and tissue paper. I have 3-4 layers of each size tissue paper in each pile. Don't worry if all your circles aren't perfect! I cut mine crooked on purpose... it just adds to the final flower!
Stack 'em up.
For the sand dollar design I pierced the flower (and all its layers) with one hole in the center and five around that.