I have been selling pens in a shop for a few years. It must be said that this is probably the least effective way to make money from pens, but this suits me just fine as it pays for my hobby. The commission the shop takes will be pretty high, in my case 50%, but the shop is in a prime location for tourists and some of my pens have gone to America and Australia.
Be prepared to get a lot of knock backs before being accepted - it's a bit like trying to get a job. I heard of my shop by word of mouth from one the shops that turned me down! They have a website that has a section where you can apply to have your work accepted, then I went to meet them and show them some samples, and we just clicked! It's a great feeling.
So if you don't mind a small profit, it really is a good way to sell, as the shop does all the selling and dealing with the public, which is a big plus for me!