Have a look at these Mantle lusters. They are a good match the pair on I Love lucy. 
See the listing on eBay for more pictures
The lustres above are painted exactly like the pair on the show.
For a less expensive alternative the following pair of mantel lustres are still a good match but painted differently:
See them on eBay currently at a more affordable price
Also a second pair here : https://www.ebay.com/itm/Antique-Vtg-Porcelain-Floral-Lustres/202112452172
Hollywood Auction 89 – Day 2 offered by Profiles in History
Tuesday, June 27, 2017 | 11:00AM GMT-07:00
Calabasas, California, USA
LOT 946
Seller’s Estimate: USD 2,000 – 3,000
“946. I Love Lucy Charleton mantel luster with original Desilu property tag. (DesiLu, 1951-1957) Vintage original Charleton brand mantle luster from the I Love Lucy set. Consisting of a 13.5 in. tall by 7 in. wide standing ceramic luster with pale green, silver and gold oxide glazes and ornamented with delicate hand painted pink roses. Featuring 8-elongated teardrop and hexagonal faceted prisms, which dangle from the bottom of the uppermost fluted bowl of the luster. Retaining the vintage original round tag printed, “Desilu Prod. Property Dept.”. This was one of a pair of lusters highly visible atop Lucy and Ricky Ricardo’s piano and credenza in their New York apartment set practically from the beginning of the series (1951) until the couple moved to the country (1957). Originally acquired from Desi Arnaz’s long time assistant, Johnny Aitchison, and comes with a letter of provenance. A 4 in. segment of the top ceramic bowl has been broken and reassembled by the studio. In vintage very good condition.”
Related posts: http://www.50slucy.com/category/charleton-mantel-lusters
Seen on eBay this week a pair of vintage Charleton mantel lusters similar to those seen on the piano on I Love Lucy – the shape and make is the same but the painting style and prisms are not an exact match however the design is similar.
More details on eBay at http://www.ebay.com/itm/2-I-LOVE-LUCY-SHOW-ANTIQUE-MANTLE-LUSTERS-LUSTRES-CANDLE-LAMPS-SPEAR-PRISMS-/391474858951
Above we see a publicity picture of Lucille Ball at home in front of her fireplace, possibly at the Chatsworth ranch home.
At the ends of the mantel are a pair of bohemian glass pieces in the typical style seen on vases and mantel lusters. Crystal glass is coated usually with a white enamel and then a pattern is cut through to show the characteristic green or red glass underneath. Lucy’s pair look like vases, or mantel lusters without any hanging crystals.
Here is an example of pieces in a similar style seen on eBay currently
Reference: http://en.wikipedia.org/wiki/Bohemian_glass
This is a pair of Charleton porcelain mantel lustres on eBay this week made by the same company that made the pair on I Love Lucy. The shape is identical except for the hanging crystals but the decoration is different.
The pair on I Love Lucy had the pink roses but were painted a pea green color and the oval shapes had a mirrored finish. I found a similar white pair to the ones pictured above so I got porcelain paint and mirrored foil to repaint them in the style of the I Love Lucy pair. I have been putting off the task but one of these days I will get started and post my progress on the blog.
See previous post about the original pair of lusters on I Love Lucy
Peter writes :
The pair of mantle lusters or lustres are found on top of the piano. As you know they are seen practically from the beginning and up until the Ricardos move to the country. I actually was able to purchase a set identical to the ones used on the show, so I’m selling the other set I have. The only difference is the color. Here’s the listing: http://www.ebay.com/itm/161471370240
The ones on the show were a green color with silver painted ovals on the crown and base. Attached is a photo of what the real ones looked like. Also, one of them has a sticker on the inside that says Charleton.
Thanks again to Peter for sharing a great find with us.
The Charleton line of decorated ceramics was produced by Abels, Wasserberg & Co. (AWCO) from the 1940’s. They
purchased undecorated items (blanks), from various glass and ceramic manufacturers and employed a team of decorators who hand decorated the pieces with designs of flowers, fruit,
landscapes, and other patterns and also decorated china and glass items for Fenton and other lines. To identify the Charleton range, an embossed label when present indicates “Charleton Hand Decorated” plus a hand written serial/stock number, and in print the letters AWCO as seen in the example pictured above.
A photo from an exhibit you can see to the right a glimpse of a mantel luster prop like the one on “I Love Lucy” but with shorter crystals.
Update: The luster in the picture from Flickr is an actual original prop from “I Love Lucy” per comment below.
Click Here for Mantel Lusters currently available on eBay
Reference: