10. Lucky in Love
Current ebay asking price: $4250
The holy grail of Pyrex collecting, Lucky in Love was only produced as a very limited run in 1959 as a Cinderella covered casserole. It features an adorable design of green grass and clovers, adorned with pink hearts. This is one pattern that you absolutely want to buy if you ever see it at a reasonable price; they very rarely come up for sale and the last one to sell on eBay went for upwards of $4000 in February of 2015!