logitek makes a nice desktop mic, it plugs into mic and is very good, stereo,and rejects off axis sounds.last 1 i bought was around $20 from wally world.it was good enough for me to use with a sound program to record my acoustic piano.

Get a small table mic in a computer or electronics store. Shouldn’t cost anywhere close to 50 dollars…

And if you’re like me and you like to improvise: I use a mic which I ripped off a hands-free set which was installed in a car and was no longer in use. If you can get a mic like that, that’s the best type to get as it has a very wide range.