That Batman at the end is also carrying the claw of Horus (I think, looks like it anyway), and a lightsaber. The other weapons are probably also famous-ish.
Number 16's Batman also has what I think is the Master Sword and Ben 10's Omnitrix.
Is that the Master Sword? I thought it might be Deadpool's sword, just based on the coloring of the hilt.
Batdabbler. This guy needs to pick a theme, focus the beam.
He is all over the place. Looks like Super Skrull bridged universes (and a little Saturday morning TV).
Yeah, that last one looks like someone who couldn't decide what he wanted to be dressed as and just jumped in a pile of EVERYTHING!