Fiverr is a great marketplace in which you can sell and buy $5 things. Just write what you are willing to do for $5 and wait for your customers response. It´s an interesting idea to create a specific marketplace.
Venture Slogan: Buy. Sell. Have fun.
Fiverr’s own description: “…The place for people to share things they’re willing to do for $5. How To Sell. Create a gig for a small service you are willing to offer. Share your gig with the world. You will be notified when your gig is ordered, and be asked to accept it. We will credit your Fiverr balance with $4, 24 hrs after you successfully deliver your work Withdraw your earnings to your PayPal…”
“…How To Buy. Find a gig you like and order it. Pay $5 by PayPal or credit card. Track your seller’s work progress, exchange files and communicate. Get your finished work!. You will have 24 hrs after work delivery to ask for fixes from the seller. Provide feedback and review…”
Venture Link: fiverr.com