Glow stuff, by and large. The waterproof foamboard is sufficiently resistant to oil residue that it's perfectly capable of handling wet fuel powerplants!
specific airframes:
B-24 and B-29 to compliment the B-17 in progress
F-86
B-36
Lockheed Super Constellation
Boeing 747
Airbus A380
Douglas DC-3
Douglas DC-10
Ercoupe
Space Shuttle
Bell X-1
Bell X-15
SR-71
I also second adding more bipes in. Nice scale bipes, preferrably Master Series.