Our friends over at New York Collector Cave has a very limited print run variant for Samurai Grandpa #1 featuring an homage to Amazing Spider-Man #300 up for pre-order
Samurai Grandpa #1, coming out from Source Point Press, is limited to 100 copies. The cover is an homage to the Todd McFarlane cover for Amazing Spider-Man #300.
If interested, these can be ordered at the New York Collector Cave website.