I've done a few...
My favourite so far is school supplies:
My least favourite challenges (which I now have out of the way!): What's your sign?
and Mash up themed kits form two different holidays:
I've also done Scrap with a kit from one of our newest designers:
Primary colours:
A week in the life:
White space layout on a black background:
140 characters or less:
Work hard, play hard:
Scrap a layout in honour of "girlfriend day":
Use one of the limited edition I <3 collabs:
Stencil it:
Photo challenge: reflection