LOL, z. It doesn't need to be fine art, but I don't want it to look completely crap IYSWIM. A half way house perhaps ? 
The lazertran looks like a fun product but I've never done any photo / graphics manipulation - just 'straight' photography, and I think that might look a bit 'vivid' IYSWIM. Nonetheless, I will think about using it as old pictures could be transferred onto large pebbles etc. and that could be neat...
I googled the home altars thingy. \link{http://www.pbs.org/independentlens/newamericans/culturalriches/art_altars.html\this short page} has some useful text for the non-altar-familiar amongst us (including myself).
I haven't tyedyed since I was about 9, td ! (Wore a few t-shirts mind you)...
Maybe mosaic, but I think I'm after something fairly low in terms of colour / brightness...
One idea came to me whilst reading the altar stuff:
A (solid) cube to sit on, with hand impressions let into each side so you can rest your hand on it IYSWIM....
Also... a kind of 7 foot tall tree trunk type thing, but hollow in the middle, with an aperture in the side (and then the trunk is solid beneath), so it is dark inside, but there is a shaft of light which can come down, and you can grab different hand impressions from somewhere and stick them in the lit hole IYSWIM and rest your hand on that...
This has totally got to be my most way-out MN thread by a long shot. LOL.