Pricing is totally subjective.
I would suggest that you base your pricing on the following:
1) cost of materials
2) cost of your time (you don't work for free!)
3) paypal & etsy fees
4) profit you want for the item.
Total those up to get a 'base' price. If you are planning on selling wholesale, then that will be your wholesale price. (the price you sell a large quantity of a single item at).
To get a retail price, you would double your wholesale price. This gives you plenty of room to have sales, offer promotions, etc without cutting into your profit.
You might find this fee calculator to be handy
http://www.rolbe.com/etsy.htm