Maker: Pyrex 
Original Price: $15*
Worth Today: $4,000*

Pyrex was founded in 1915 by Corning, Inc., and it started out merely as a line of clear glass dishware that could be used in the kitchen. It would later expand, and vintage Pyrex collecting has since become a lucrative and popular hobby. Vintage Pyrex dishes like the 1959 Pyrex Casserole Dish are worth thousands today

Pyrex even announced that it would be relaunching the “Lucky in Love” Casserole Dish from that year in 2018. The Lucky in Love is one of the brand’s most popular vintage designs. The one-quart dish is adorned with green, four-leaf clovers and a green grass garden with cute pink hearts.