I bought a counter top extension from Camping World. Photos:
http://www.classbforum.com/phpBB2/vi...php?f=33&t=555
I also bought some Stanley flip up / fold down shelf brackets from Home Depot and used them for a similar project. Photos:
http://www.classbforum.com/phpBB2/vi...hp?f=12&t=2402 It's not the best choice for RV use because it rattles. I secure it with a bungee cord.
Another idea would be the dining table bracket that is just visible at the top of this photo:
http://www.classbforum.com/phpBB2/vi...&t=2327#p12633 It's the strip screwed to the wall. It comes as part of a kit containing a single fold-up support leg. The leg is shown in subsequent photos.
I saw some bamboo cutting boards at a Dollar Store that would make an attractive counter extension. Much better looking than the white pressed wood one I made.