You want the super-nifty dashboard tray and cup holder that someone on the Samba sells (can't remember the name -- check the classifieds). It anchors in the hole that the ashtray came out of and it's totally essential!
Oh my gosh I LOVE THIS ONE! It Used To Be a School Bus … Now It’s a Cozy Loft On Wheels! When most of us think of buying a house, we turn to the real estate classifieds—but not Felix Starck and Selima Taibi of Expedition Happiness.