Trust Mico GXT 212 USB Microphone Unboxing : Cheap & Cheerful Microphone For Occasional Use!
Here is an unboxing of the cheap & cheerful Trust Mico GXT 212 USB Microphone . It comes with its own plastic tripod and you can connect via USB or wire . The lead length is 1.8metres.
Cost is £21.99 UK around $28. I would say its probably going to be good enough for occasional use on Youtube videos etc but if you want something you are going to use a lot then you will need to spend at least twice as much.