I always have several kits in various stages at any one time. Here is what's on he workbench right now:
1) A 1/48 Accurate Miniatures TBM3 which , when finished, will represent the a/c my uncle flew while stationed in Saipan in 1945. Since this is to be a birthday gift for him, it took quite a bit of time to research because I couldn't really ask for his old photos. I thank God for message boards like this one!
2) A 1/24 Airfix P-51D Mustang that I am building for my daughter. I found a picture of a P-51 with her name on it as nose art and was inspired to pull out the big old kit that was collecting dust. It will take a little work, but with a few tips from some on-line articles by Rodney Williams, the detailing should go fairly smoothly.
3) A 1/48 Revell P-51D (yes - I know!) which I picked up as a cheap hack to practice my foil techniques. I'm trying out a few different methods to work out which technique and which materials work best under different conditions. The P-51D has a few challenging curves,undercuts and details which can pose problems when applying foil.
4) A few 1/72 Academy kits just for fun OOB builds. There inexpensive, fairly well engineered and surprisingly well detailed. I have a BF109 and an A-37B in the works.
5) A 1/48 Revell A-26 Invader which will (after some surgery) represent the a/c flown by Richard Dreyfus' character in the Steven Speilberg film 'Always'. This project will give me a little adventure in producing my own custom decals of my PC.
Needless to say, my workbench is always a bit of a mess!