I like to make my own starter pots. Mostly because I always have little plastic cups around since I use them to freeze chicken stock in when I make that. But they are also good for rooting and starting cuttings. I like that you can see how the roots are doing without having to pull the plant out, possibly damaging them.
All you have to do is take one of these 8oz (or so) cups and cut holes in the bottom. You do however need to make sure that they go up the sides a bit, if they are all on the bottom they won't get proper drainage and you'll get root rot. But that's it, nice and easy and inexpensive.Now it's ready to be used.