cufflinks are called 'boutons de manchette' in French.
"Les boutons de manchette sont en or"
English Cufflinks are owned by Octave Design; they design men's cufflinks in a range of materials.
The best way to get personalized cufflinks would be to purchase cufflinks and then have them engraved. Cufflinks are not difficult to find, and to have them personalized, one can visit a place such as Things Engraved.
The amount of silver in a pair of sterling silver cufflinks can vary depending on the design and size of the cufflinks. Generally, a pair of sterling silver cufflinks can contain around 10-15 grams of silver.
Georg Jensen cufflinks
One can purchase monogrammed cufflinks online. These places include CuffLinks, Things Remembered, Amazon, Brook Brothers, Overstock and lastly Groomstand.
One can purchase sterling cufflinks from a lot of places. The most popular places to purchase sterling cufflinks is from eBay, Amazon, JCPenney, and Overstock.
"That depends on where you plan to purchase the cufflinks. If you buy them from a jewelry store you're going to pay a lot more for them. If you order a used pair from eBay, they will be cheaper."
Cufflinks - 2006 was released on: USA: 18 December 2006 (internet)
French cuffs when unfolded should have 4 holes at the end of each sleeve. Once folded, you should only see 2, one on the outside and one on the inside. These holes are then fastened with either cufflinks, silk knots (monkey cuffs), or button cufflinks (which are two shirt buttons attached together in the middle with a string).
One might find vintage cufflinks for sale at antique shows and auctions, they are available to buy across the internet from specialists such as Vintage Cufflinks.
Duchamp Cufflinks are bound to be found in Ebay. Ebay has a variety of everything and I have found those specific type of cufflinks there. Ebay is a very good source.