Charming

In the 2010 version of the event, these no longer come from broken-hearted players. Instead, to obtain these, you need to have a Lovely Charm Collector's Kit (obtainable from Peddlefeet-like NPCs in major cities) in your inventory, and go kill mobs that will grant you xp normally. This kit apparently disappears on logout like other conjured items currently. You do not need to loot the charms, but they will appear in your bag if it "drops". Personal testing suggests the drop rate is around 20-30%. 10 of these charms can be combined to form a bracelet.

In practice, you can grind easy mobs like the wolvar in Sholazar Basin or do the Battle Before the Citadel quest in Icecrown. Trampling the foot soldiers will give you charms which you can use to make these bracelets.

These bracelets provide a grindable source of Love Tokens, which is the currency for buying most of the items you will need for achievements, as well as 40 tokens for a permanent Peddlefeet.

After the latest maintenance, it appears that fast-respawn/ low hp mobs such as the foot soldiers in Battle Before the Citadel do not yield charms anymore. If this so, Ulduar dwarves possibly do not give it anymore as well.

This achievement is removed with the revamp of Love is in the Air 2024 10.2.5 and is now a feat of strength.

Now in shadowlands if you want this achievement, and you are lvl 60, you have to make the newest content. The way I found it easist to get it was trough some Torghast layer 1 runs.

So just to sum up

1) get the "Lovely Charm Collector's Kit" from the vendor in your mayer cities I personal found mine in Orgrimmer to the right of the AH house if you look in.

2) Go to a spot where mobs still are marked green in there levels, for lvl 60 players you have to kill in newest content. I personal decided to clear all mobs in a Torghast Layer 1. They die fast and there is a lot of mobs inside.

3) When you have 10 Lovely Charm's you can craft a Lovely Charm Bracelet

4) Repeat until you have 12 Bracelets

Hope my comment can help people