Hows about getting a whole book of stuff...there's some nice stuff of same composers e.g.
-Wedgewood Blue, After hours (1/2) both by Pam Wedgewood.
-More Romantic Pieces for Piano book 4 (ABRSM publishing)
-Das Piano Buch, Edition Peters
-Maybe books of your favourite bands etc.
-Great Piano Solos, Wise Publications
-Burgmuller 25 Easy and Progressive Studies
-Toll in Moll, Breithopt & Hartel
- Grieg Lyric Pieces and Poetic Tone Pictures
These are just some of the books I have and play from, and from what you've said, I'm about the same standard as you. Hopefully there might be something in that little list to inspire you/give you another idea.
You could PM me if you want any more ideas etc. if you'd like.
Hope this has helped a little