Product Suggestions, Please?

Jennifer, of Belclaire House, purchased a cell phone case (I have the same one) I created on zazzle, and featured it on her blog.  The photo above is from her house and shows her phone case and her awesome books and accessories :)

Here's the case from the zazzle site.  Designing products is really fun, so I did lots of cell phone cases.

Then, I moved on to postage,

 pillows,

kitchen towels,

placemats,

and mugs.

There are lots more items I've designed on zazzle.  These are just a few examples.  Other products I could create include napkins, water bottles, ties, binders and on and on.  Do you have any suggestions?  Any images you think I should use from my store for these products?  I'd love to add to the inventory and would appreciate any ideas!