We will do a signature campaign in the near future and are looking for somebody to make the signatures. If you know how to make those signatures and want to make them for us, please drop me a message with your offer. As I understood I need various signatures for the different levels of memberships. The signature campaign will be for
www.deribit.com, a bitcoin futures and (vanilla) options exchange.
You can try the service section as suggested by others but also you can contact personally the various moderators of significant ad campaign for better understanding and not fall victim... My 2 cents...