When I bought my HUO AS a few months back, it had some nice decals on the speaker panel that made them look like Marshall Amps.
I liked the idea and the layout, but the logos didn't stick very well and as a result, lifted in certain areas and ruined the look for me. So I had the idea to enlist swinks to help with some 3D printed pieces to replace the decals. He was generous enough to oblige and after sending him some measurements, a test run, and a final tweak of the logo size, I'm really happy how it turned out.
Here's how the right one looks close up now.
I used very small strips of 3M 38582 Exterior Tape (http://a.co/7vQFXzR) applied to the back to attach it to the grill. You can see it applied to the back of the logo before and after I peeled off the red protective plastic for application. I used 10 small pieces on the back of each frame.
I think it really adds a professional look to the speaker panel. The front of the plastics is smooth and rounded. The cost was about $50 shipped for the pieces. You'll need to buy your own tape or whatever you plan to use to stick it to the panel.
I used 2 each of the speaker border and the 3.25" logo. You need to cut and apply double-face tape to the pieces yourself as these are just the plain pieces. It was about $50 with shipping. I used the White Strong & Flexible Polished for the border and White Premium Strong & Flexible for the logo. Other colors and materials are available but I liked white the best.
The link to swinks Shapeways page for these parts is here - https://www.shapeways.com/marketplace?q=swinksmarshallspeaker&sort=newest