To have some fun with it, I'd probably then get one of those inflatable costumes and wear that on top. Immature, sure. But there's no way a T-Rex at the dinner table can be considered immodest.
He was mighty not for his sword, but for his heart. His terrible, terrible, sundered, broken heart. There are, of course, people who see only the sword, but it's a little ironic that the mightiest of the gods was the most tragic.