one of my friends had a great idea for hor d'oeuvres which involves no bread/crackers:
made some spreads - guacamole, egg salad, tuna, pesto and feta cheese , whatever.
then take some "hard" vegetables, peel and slice - cucumbers, kholrabi, radishes, also cherry tomatos cut in half, etc.
now take a row of cukes, spread with one of the spreads (you have to match up the colors and everything
), then a row of the next veg, and spread with a different spread, etc. it looks pretty.