If you want to take your Overwatch Mercy costume the extra mile, Instructables user Engineer-Corwin is here to help. He made a replica of her Caduceus staff in the game; she used it to heal people. The prop doesn’t emit any healing beams, but it goes through the motions — which you can see in the above video.
The staff was made from 3D printed parts, a switch, batteries, a 6 volt 30RPM motor, magnets, filler, primer, and several more items. You’ll be able to find everything easily at your local hardware and craft stores, but it’s not a short shopping list. The build is complex from the 3D printing to the assembly, but look at the results. I’d say it’s worth it.
Get all the details, more in progress photos, and downloadable files at Instructables.