Oscar Wilde commented on people who
'knew the price of everything, and the value of nothing'. So I wouldn't get too hung up on price. A thing in the market place will always have a price, it just depends on the quality, appeal, fashion, skill of producer, must-have factor, and, I suppose in these hard times, the state of the economy. Selling anything too cheap sends out a subliminal message to buyers that the producer is no good (which doesn't apply to you) - ergo, the goods are not much good. Selling too high is OK if the buyer is prepared to pay for it, but then there's the question how
many people are prepared to pay for it, and can you reach them?
Something relatively unusual and different, well-executed with some flair, and well presented is always going to be 'worth' more than some standard run-of-the-mill product.
I'd try it out on a few people that you don't know very well, just to see what they might be prepared to pay. After all, they could easily be some of your buyers. Why not post a shot here and we will tell you?