Missing thru Axel adapter for Scicon aerocomfort bag

Im just helping a friend pack her bike for Kona. We’ve just realized that the thru Axel adapters are missing. She’s leaving first thing Saturday morning and Scicon can’t get them shipped here until Monday. Looking for an emergency DIY solution that anyone has used and can recommend! Thanks!

3D printing…

The part is really simple to do and 10’ to print : Kit Thru Axle adapter end caps Aerocomfort 3.0 Bike Bag