I have 2 new packs of Designer Bits instore now.
Designer Bits are resources for designers.

This pack has 10 wavy edges in png format. They are 12inches at 300dpi
The wave is on one edge. You can use these to edge your papers - just clip the paper to them. You can also use them to add waves of color to your backgrounds or to create elements. These will save you heaps of time making your own.

The second pack has 10 circles in both png and as a photoshop brush [abr]. They are varied thicknesses and styles. Great for coffee stain effects They are approx 4.2inches at 300dpi

These are ok for commercial use
I don't require credit and you can read my full TOU here.