Gizmo Black box and 'E' Replacement?

Hey all

I’m hoping someone here can help me out with my gizmo.

I bought the kit form spongeface and somewhere along the way I’ve lost the black box and the ‘E’ that goes on it.

I tried contacting doug via pm but haven’t heard anything back.

Any ideas what I can do to fix it?

I’m guessing I could make the outer ring via 3d printing maybe shapeways or something but the ‘E’ is the part that’s throwing me off.

https://photos.app.goo.gl/YczvSGWrtWLPhGKAA

For my gizmo build I knocked up the E logo bit on my computer and then printed it onto some clear plastic sheet and it worked really well.