Ikea are selling a picture ledge for under £10 that just happens to be the perfect size/angle for setting up your little synths (or even guitar pedals if you're using them with a tabletop setup.
It's called Mosslanda, it comes in a couple of sizes and colours. LANK
I would post a photo but now Photobucket has shit the bed I have no clue what to use for photos on here. Imgur doesn't seem to work.
I just got it and haven't had a chance to have a proper go on it. I've been busy with work and wanted to get the right on all fixed up. I'm off tomorrow so I can give a proper opinion of it then.
This reminds me of the "Lack Rack" idea, where someone discovered that those small Lack coffee tables make an ideal rackmount enclosure. I must admit, I've seriously considered doing that if I picked up any rackmount stuff...not road-worthy for sure, but a cheap solution for home studio.