https://www.etsy.com/listing/170374838/ultra-fine-sharpie-holder-for-silhouette?

Insert the Sharpie into the adapter. The plastic tip should fit snugly into the hole in the front.

Insert the adapter with marker into your Silhouette Cameo but don’t lock it in place yet.

Quickly press on the locking mechanism until it is all the way down. This will cause the adapter to slide up to the precise distance from your piece of paper. Quickly release the locking mechanism. You should see the adapter slide up.

Turn the lock and you’re ready to print! The whole process should only take a moment once you get the hang of it!

See it in action below.