Farkle is sold as a commercial game that includes dice and cups. It is actually a folk game that has been known under various names, such as Cosmic Wimpout, Hot Dice, Greed, Zonk and Darsh. There are a wide variety of variations, but the basic rules are here.
You could buy the commercial version, however, most gamers have all the dice needed at home.
Bob Corderey offers Red Flags and Iron Crosses, a set of free wargames rules for playing World War II games in 20mm. The rules focus on small actions between Soviet and German forces.
Here’s a nice, short video demonstrating a wash blending technique.
Stephen Thomas offers a DBA variant for New Zealand Colonials Wars. The author writes:
These rules are intended to refight the battles of the New Zealand Colonial Wars, 1840-1872. They do not cover skirmishes They are based on DBA, and influenced by the article by Ed White on DBA and the Seven Years War (WI65), and Clive Clapson’s article on the Maori Wars (WI63). As in Ed’s article there are two assumptions:
1. The first round of close combat also includes short range small-arms and artillery fire.
2. Troops potency depended on their ability to deliver close range volleys or cold steel.
The Solitary Wargamer offers a variant of DBA for the English Civil War.