Yes, Esci did a set as did AMT/Ertl, which used Esci kits and accessories with vacuformed bases. MPC did the vacuformed base sets as well but used Airfix 1/76 scale items.
Dragon does a 1/72 scale LCM3 with a beach scene and several GIs and beach obstacles as well. It is probably the easiest of the above kits to find. I think it came out in late 2004 and should still be readily available. The LCM is not as nice as Trumpeter's, but includes a clear acetate display base.