Donna,

Levi Jackson Rag, for 10.  Becoming a local favorite when numbers permit.
One I really like is David's Triplet #5 by David Smuckler.  (It has a hey for 6, or do it w/ hands to introduce a grand R & L).  Nice dance.

Another quirky one that is a hybrid contra/square is Square Line Special by Gary Roodman.
Lots of ways to mix things up in the B part.

best regards,
Paul