Here're some silly stuff I did a couple of months ago. Realistic-ish weapons for the PvZ universe:
Peamann &Co "Green Marksman IV"
The Green Marksman IV - Root handle and dust cover with a crappy wooden grip, glued together with a standard beige duct tape , steel trigger and trigger guard. Peashooter Repeater© barrel. Undead repealing guarantee. May produce funny noises while delivering green justice.
Peamann &Co "Frostbite"
Highly Experimental, takes a single Frost Peashooter barrel to new heights. Cold-proof grip, frost-free trigger.
Baron David Twinkle's Cattail Rifle
The Baron used to hunt elephants with that unholy contraption of a rifle. Catnip not included.
Armadillo Tactical - Needle Spitter Shotgun
Compact Cactus barrel. Pump handle to reload. Explosive at close range. Avoid regular cleaning.
Danzel Lily's Custom Sniper Rifle
She was a lady that hated close contacts, always taking her business from afar, hence this marvel of zombie killing weaponry was born.
Flora Engineering Solutions - Peagoo
The Peagoo was born mainly to solve practical problems, like how to glue together an archway to a wall. When the engineer realized that the Romans came to that solution thousands of years ago, he decided to invest time on Zombies. Slow zombies walking even slower, now that's funny.