So Beleth made this crystal post asking people for suggestions on how to hide anchors on hands, and will be testing (most of) the ideas that were given. This includes:

Wearing makeup thick enough to cover the mark, using makeup setting powder to make sure it doesn't easily smear off (if it exists in thedas? i mean if winged eyeliner and lip liner exists i would think that the stuff to set it would as well).

Wrapping hands with bandages.
This is less of a 'would this work' and more of a 'would this get too obvious as long as they try not to have too many people doing it'.

Invisible gloves.
Jester has been tasked with attempting to locate this (because Beleth doesn't want to waste time on it), and I think can be assumed doesn't actually exist, BUT JUST IN CASE.

A glove modified to resemble a human hand.
Wysteria has been tasked with attempting to commission this from a leatherworker (because like with above Beleth is pretty sure it's nonsense).

A glove modified to resemble a wooden prosthetic.
Beleth has more faith in this idea, so she'll be commissioning attempts from several woodworkers to see who can best create this, and having several rifters test it through a trial period.

Sticking a patch over the anchor, both to resemble a scar, or a tattoo.
Bonus points to consider: sticking a fake tattoo of a ship anchor over the fade anchor.

Jewelry that covers the hand.
Like so but with a thicker make that could actually hide an anchor. Note: this would probably only be used for occasions when people need to look fancy, IE sneaking into a ball.

Attempt to dye the back of the hand with ink.
Either with a green that would closely match the color of the anchor, or something darker that would hide it entirely. Similar to the patch, but applying the ink directly to the skin.

Some kind of enchantment that could hide the hand??
I (and Beleth) assume that if it were possible, it would already be done, but she'll ask around the mages in the Gallows anyway.

Have everyone in the Inquisition wear gloves so it's less suspicious.
On one hand, this wouldn't really do much for clandestine missions. On the other hand, all of the armor the Inquisition wears in DA:I already has gloves in it, so. Not a stretch. Though I guess it'd also be tricky to make everyone have to wear gloves. I'm not even sure how Beleth would test this. BUT here it is anyway, just in case anything useful can be done with it.

SORRY ABOUT ALL OF THIS but I didn't want to assume anything and it'd be cool to have more options besides 'wear gloves and pray you don't need to remove them'.