Half and half brew ideas

Anyone have any good recipes for a half brew, half lemonade, or half sweet tea?

I don't have any recipes, but I would think that you could easily brew a batch and then when serving, simply pour X amount of beer into a glass with your desired tea, lemonade, etc. In Colombia, there's a drink called Refajo (pronounced Ree-fah-ho). It's basically beer mixed with a cola. Sounds odd, but it is very refreshing.

This recipe adds Aguardiente (a sweet liquor) which is not traditional. I would not add it... but maybe just do some shots of it!

http://www.mycolombianrecipes.com/colombian-refajo-refajo-colombiano