The Cinco de Mayo mini is one that I picked up two years ago for my very first May Mini Madness. Back then I bought a 4-pack of dwarves from the old WOTC skirmish game, Chainmail. I painted the cleric the first year, the legionnaire the second year, and now the gunner.
There's also a grenadier that I'll paint in the next few weeks. No need to save him for 2015.