Transformers are excellent toys — not only do you get a cool vehicle, but a combat-ready robot as well. Who's going to be all negative about a two-in-one plaything? No one, just like no one could have anything bad to say about this custom Transformer that can turn itself into the Enterprise E from Star Trek: First Contact (and later films in the Prime universe).
Painstakingly put together from various other toys by DeviantArt user Unicron9, the "Autobot E" can morph from warp-capable starship into a blade-wielding, shield-holding mechanical man.
It seems... unwise to use the saucer section as a shield — it contains a large portion of the crew — and wouldn't the resulting robot be able to use the deflector shields of the Enterprise E anyway?
(OK, I'm looking into this too much.)
Unicron9 also provides some interesting fan fiction to describe the creation's origins, if you're into that sort of thing.