Bow
Insulation foam layered with popsicle sticks, tongue depressers, and styrene
Lego hinge
Skyhawk missile
Wendy's kid's meal Nickelodeon diorama base
Haloween picket fence
Model scale bolts
Lego pirate ship wheel
Kwinn pick lever
Kite frame for the bendable tube bow
Twine coated flower wire
GI Joe screws

Target
Styrene tubes
HACKS black knight kit
Dread Helm
Zombie Lab head
Popsicle sticks and tongue depresser

This is what happens when you long term borrow a siege crossbow from a fortress and have a smithy attach it to a also liberated wagon. I tried to show off the old and worn wood of the crossbow while showing the metalwork of the base the smithy used to attach it to the wagon. I also learned from drbindy not to make it actually functional and so used flower wire instead of string or cord so it would always be pulled back.

If that wasn't enough, I decided to use a leftover upper body of a knight from another custom and make a jousting practice target that could attach to the same base.