I actually had a solution for the tangling issue.
Velcro. :]
What I had in mind was actually that the shield would be in the shape of a spider's body. Then, I'd have eight straps attached to the cover that would reach around and velcro in the front, making it look like a sort of spider-piggyback ride.
And a punch handle, just in case.
.....Why do I put so much creativity and effort into my sister's weapons and not mine? xD