Well, I'm particularly fond of experimenting with Latinizations of predominantly pop-cultural terms. Quite a while ago, I started a minor debate over whether Superman should be called "Supervir" or "Superhomo" or even if "super" could properly be used in this way. More recently, I came up with a proposed nomenclature for musical genres ("musica ruralis," for example, for country-western). Even more recently, my thread regarding random post-classical proverbs has been revived somewhat.
I also experiment with proper nouns (mainly personal names), coming up with such forms as "Gualterius Disneius" for Walt Disney or "Telora Suifta" for Taylor Swift.