There is a vintage coffee grinder like Lucy’s on eBay but painted differently at http://www.ebay.com/itm/B-O-Garantie-COFFEE-GRINDER-Mill-80T-Czechoslovakia-Vintage-Wood-Green-WORKS-/222409060237.
See previous post on repainting one with an added ivy motif to match the coffee mill on the show: http://www.50slucy.com/restoration-project-i-love-lucy-inspired-coffee-grinder.html