Since halloween is coming up (unless your country doesn't have it), a lot of stores are selling cheap wigs. I went to the mall and saw a lot of wings in both natural and unnatural colors. You might want to buy one now or just after halloween, just to try one out. Youtube has a lot of videos with tips on make cheap wigs look less fake, and how to make your own wig.
and just because it is somewhat related I'll link this video . it's a prank video, but it's also the only reference I have to someone making a wig from their own hair. While there are services that offer making wigs from your real hair, they often mix in other hair (fake or real) since apparently one head of hair isn't enough to make a wig.
A question of my own, I posted a different thread about it but I don't think it would be a harm to ask here. What are the normal price ranges of wigs? I saw some shoulder length wigs (in a wig store, not halloween wigs) that were selling from $13 to $17.