I thought of a few, but I definitely second the tacky theme. I have a whole bunch of sequins and sparkly bits I've been itching to use.
*Journal entry/art journaling/sketchbook page
*Marriage of old and new (vintage pattern style w modern twist, modern scene with a antique embroidery saying)
*Superheroes/villains (real or made up)
*Cause awareness (ribbons, symbols for a cause, etc)
*Scene/character/symbol from favorite book
*Scene/character/symbol from favorite movie
*Nature reclaiming land/building/items
*Tea-party/tea cup scene (could be tea w the Queen to Alice in wonderland to tea w a good book, pick your own)
*Item most precious to you
*Self portrait/items that make you happy
* favorite toy growing up
*character from favorite children's book
*illustrate a quote
Some are sort of thinkers but I think they'd turn out nifty little stitches.