The artist said in her post
here..."The white oval is made using my coluzzle and the scalloped oval is cut freehand using some scalloped edge scissors from provocraft that I got at JoAnn's ages ago. Cutting by hand isn't as speedy as using a punch but it's a lot more economical since I already have the scissors."
But I think you might be looking for the SU! Oval pUnches also... Availibe from your demo.
here is a link to them in the catty...
Large Oval
Small Oval