True Details made a set of resin bombs in 1/48 scale. They had the MK 81 and MK 82 LDGP and MK 82 HDGP bombs. I think they also had the 5" HVAR in that scale.
TAC Scale Dynamics also has 1/48 scale bombs in resin. I think thy have a larger selection of the newer bombs too.
Berny
Phormer Phantom Phixer 
On the bench
TF-102A Delta Dagger, 32nd FIS, 54-1370, 1/48 scale. Monogram Pro Modeler with C&H conversion.
Revell F-4E Phantom II 33rd TFW, 58th TFS, 69-260, 1/32 scale.
Tamiya F-4D Phantom II, 13th TFS, 66-8711, 1/32 scale. F-4 Phantom Group Build.