Its easy to start selling here and you wont have the fees that ebay charge you. Make a new thread in our "For sale" forum
As has been mentioned , do take plenty of pictures and describe everything in detail - any flaws including factory flaws need to be mentioned even if they are really tiny
If your buyers need to know anything else they will PM you or post a question on your thread. You are welcome to ask us Mods if you need any other advice on how to answer questions or post a thread etc
To work out shipping costs : do you have a digital kitchen scale? if you do then you can put your BB pony/ponies in the packaging you intend to send them in - a bubble mailer is fine for BB's - and weigh them, then you can go online to the USPS website and there is a postage calculator - it should be pretty easy to use
if you cant weight the ponies at home then pack them in the envelope/box/whatever you want to use and then go to your local Post Office . they can give you the prices there
It might be best to start out selling to people in your own country and then move on to international selling once you're used to how things work
Do you have a Paypal account set up already? if you do then it should be easy to recieve payments from people here at the Arena
All you do is tell them the amount they owe you and give them your Paypal address then they will send you the money. The money will appear in your account. (The only time you'll need to do something more is if the money is from an international buyer and they've sent it in a different currency - then you just need to click to accept the payment.)
If you would rather sell on ebay , take into account that the fees will cost you up to 20% and your funds could be held for up to 21 days. You will have a wider market , but it can be expensive for a few blind bag ponies
Hope that helps a bit