Ah, thanks guys

You've brightened my morning!
Rev - The switches were a bit of luck. I was gonna go with something similar and discovered just before ordering they were tiny! These ones are almost the right colour without any real effort attatched - though to connect them you do need the wires on show, which I'm still umming and ahhing about for now.
But who wants a big impressive switch that's not connected to anything? : o
The large vial was a stroke of luck as well. I was pottering about in town and found it marked down from £20 to £6 >

Originally I was going to make it a specimen jar, but feel this was more interesting.
H0wb0y - You flatterer! I'll be keeping you all up to date as things go. I'm in an odd position where my work is sometimes stunted due to the noise of hammering or drilling. I have to try and do as much as I can in the morning and get on with gluing and wiring and painting in the evening, so as not to disturb neighbours!
A couple of USB plasma balls and a little plasma disc...thing..arrived today, and they all work on the alternative battery packs I got, so about to embark on putting them together in their places. Will be trying to finish the Vortex Lamp (above) first, though. Stay tuned!