It is really hard to price your own items. I, too, am struggling with this. But I agree with the above posts- I think your items are priced low. You use really unique materials and paired with the time it takes to design and make your products, I think you could definitely increase your prices. I've been advised to use the formula material costs + time (amount per hour you are paying yourself) = whole sale. Whole sale x 2 = retail. I think it's about balancing paying yourself and still keeping prices within a range people are willing to pay.