If you read a game or skit description and still don't understand it, try search for it on Google/YouTube. You might be able to find a very helpful video or another more helpful description!
Big List of Games - Literally that, just a big list of games. Most are mixers or kid skits.
Skits - Not all of them are good, but some are and are funny and straightforward. Some require a lot of lines.
Wildlife Club 13/14 - A sample of a junior high YL club semester plan. Lots of games with descriptions--and these games are usually great to start with and proven to work well.
Mixers - Lots of mixers. Many are good, some not so much. Take a look!
Kid Skits - Short (only 3 pages) but sweet, lots of these kid skits are winners.
Mixers - Another great list of mixers, including a column for necessary supplies. At the bottom of the document, there's a list of bigger "outdoor" mixers, too.