Here's another site with the cutters: http://www.amazon.com/Wilton-Leaves-Acorns-Cookie-Cutter/dp/B00004WHQJ
I just remembered that I also used a scalloped heart for some of the leaves.
I used the small end of the Wilton veiner that comes in their gumpaste tool set. It seems like it would take forever but it doesn't. I dried them on plastic egg trays (the ones for Easter eggs, a deviled egg platter would work too) and on the backs of silicone mini muffin pans. I painted them with paste color thinned with vodka, to make the veins show and to make them shiny.