I know what you're going to say... "There are already tons of easy ways to make shock mounts for cheap." And yes, there are. However, I took it one step farther, and designed a shock mount that A) Can easily be used with a desk tripod, and B) costs absolutely nothing to make.
Step 1: The Tools
All you will need for this is a microphone with a desk tripod (This is an Audio-Technica ATR2100USB, and comes with one) and a towel.
Step 2: Assembly
All you need to do is fold up the towel until it won't fold anymore, then set your tripod over the top of it. None of the legs should be touching your desk... It should be supported from the middle.
Step 3: The Results
As ridiculously simple as this looks, it actually works. I went ahead and recorded 2 samples in Audacity; one without the towel and one with. To do the test, I opened up notepad and typed "Hello, this is the Poor Man's Shock Mount." I had to amplify the results from both of them about 10db so you could see the wave forms, but the results pretty much speak for themselves. The top recording is without the towel, and the bottom is with it.