EBAY...
Seriously man... you have to be a member here for a while before you can go into the b/s/t section.
I am not joking when I say Ebay either. It also depends on what type of combi stick/figure you are looking for. You need to be a little bit more specific if you want a really good direction too. We will help you (at least I am willing to) but you need to be a little bit more descriptive in what you are looking for.