My 6 year old son wants a 'real' microphone and stand just to sing with and pretend he's on stage like Billie Jo!! I'm confused with mixers and amps and microphone systems. I just want a cheap way of powering a microphone. Can anyone help?
The cheapest you can go while still using "real" equipment that works is probably going to be over $200, plus tax.
The amp is the "big ticket" item in this setup; everything else is bottom of the barrel or the only appropriate option. This "Fender Mini" linked above is really a bunch of normally separate components in one kid-sized package -- a mic preamp, a mixer, an effects box, and an amp. It's even got a separate input for an instrument like electric guitar or bass. Basically it's a garage band starter kit.
Voluntary disclosure: I don't work for zZounds, I just really like their website.
You need a Shure SM58. They cost 100$ always, and they are the staple microphone of the live sound world. The SM58's cousin, the SM57 is the Presidential microphone of choice for the lectern. Someone buried a SM58 and it worked just like normal after 1 year. Some people I know have 20 year old SM58s that are still in service.
So anyways, I don't think a 6 year old could damage it.
Plus it sounds great.