I loved ChaosCoreTech's Mjolnir model, but my kid specifically wanted one that had a slot for a strap to fit through. It is not recommended to actually swing the hammer around by a strap through this hole, but if you wanted to attach something, you could loop it through the hole in the bottom section.
This project only includes the bottom part of the handle--nothing else has been modified. Please see the original CCT model to download the other components if desired.
Feel free to Buy Me a Coffee if you like what I've done.
The author remixed this model. Imported from Thingiverse.
I took the Mjolnir handle from ChaosCoreTech, and added a through-hole to enable adding a string or strap of some sort. I wouldn't advise swinging it around by this hole in the handle--but it makes it easier to loop something through without gluing it permanently.