Here's how I'm hanging my Wiimote. I bought these little clips at Home Depot for about $5 for a set of four of them. There were a couple of different brands, but they worked exactly the same. The clips have a 1/4 inch screw coming out the bottom. You simply twist the clip onto the T-bar deal that holds the panels on the drop ceiling. To take them off you just twist in the opposite direction - piece of cake!
Here's the Wiimote hanging:

Here's the UPC of the package of clips I bought:

And the front of the package. Suspend-It mounting clips.

Here's the clips out of the package:
Here's a shot of the PVC pipe hanging from the ceiling. I drilled a 1/4 inch hole in a PVC T connector, used a lock washer and nut that screwed onto the 1/4 inch screw that comes out of the bottom of the ceiling clip, then attached a length of PVC pipe so that the Wiimote hangs at the right level.

Another shot of the PVC pipe hanging there. Not sure which you'll see best, so I put two up.

Okay, so I put three pictues of the pipe hanging. :-)

And here's a close up of the clip, clipped onto the T-bar on the ceiling. It just snaps into place and holds very well. We're only looking to hang a pound or so; PVC pipe, connectors and Wiimote, so it doesn't have to be heavy duty.

Here's a close-up of the Wiimote hanging. I used white electrical tape to hold a magnet onto the PVC pipe and another onto the back of the Wiimote. I tried using superglue but it did not hold. The tape doesn't look as nice, but works great. I think in the future I'll do a prettier job of taping it up.

A close-up of the magnets taped to the PVC pipe and Wiimote. Yeah, not pretty, but functional. I used rectangular magnets that I bought at an electronics supply store for 25 cents each. They're surprisingly strong and allow for excellent positioning.

Since I didn't use the glue stuff to permanently stick the short bit of PVC pipe into the T connector, I can rotate it to aim it just right. I stick the short length into the connector but not quite all the way, allowing it to twist when I crank on it. It's a good hold though.

I run the whole thing from a USB Flashdrive, and connect it and the BlueTooth dongle via a little hub. This works pretty well so far, and is portable to show off to other teachers.

If you have any questions, feel free to drop me a line, post a message on the blog, or ....well, those are pretty well your only options.