I've seen variations of this, none of them suit my desires. This one doesn't require any extra hardware, just clips in. Designed for ribbons up to 40mm.
 

No real need for fine level printing as the flat base layer is the focus of the object.

NEW: I've added a stand for desk mounting your hard earned medals. Enjoy!

Mounting your medals:

Start with the medal sitting at the position you want it in on the front. Wrap the ribbon over to the back, then around the bottom. While holding the ribbon where it wraps at the bottom, flip the medal off the top and rest it on a service, then thread the other end of the ribbon through both centre holes. This will give the tension required to hold the medal once hung. The remainder of the ribbon can then be gathered on at the back. Wrap the medal back over the back, to the front. The gathered ribbon will provide bulk to allow tightening of the front part of the ribbon to ensure it sits right.

Short form: 

1. Leave some length at both ends (approximately 8cm on the medal end), medal and mount face down.
2. Thread through the centre holes, front (of the mount), back, front.
3. Gather the tail end at the back.
4. Wrap the medal over the back, then to the front.

Hanging the mount. Make sure the notch in hex part is upper most to the mounted medal when placed in. Hang on a screw, or multiple if you've just got too many medals. 😊
Screws should be a multiple of approximately 206mm apart horizontally.