What you're describing are Mockett Grommets. Haven't used them myself but I think a few people here have them.

Here is a link that might be useful: Mockett

Each to his/her own. I actually find the look of plugmold to not my liking. I have those at my work at my cubicle desk. I dont' find them attractive at all. I have custom cabinets with gorgeous lights built into the undercabinets. I was not going to ruin them with plugmold. The bottom of my cabinet is finished to the same level of finish as the fronts.

I just put them on the backsplash. I used slab quartz for my backsplash and the fabricators were able to cut out the spaces for the outlet from the slab. It's no different than cutting out holes for faucets. I have seen mirror installation where the fabricators have cut out holes for lights. If you go to the right installer, they can cut out the holes for your backsplash. You do the templating after all the outlets are in. It was never an issue with the fabricator that I used.

A friend of our had a raised custom metal work made to hide the outlets. They have a dark grey counter and the custom dark metal work blends in with the counter and works for them.

I have also seen Mockett outlets. These are for desks, not generally used for kitchens. I would not do them for kitchen where large spills can occur. Even with caps, I would not want large spills. Recently, I made smoothie and I had a huge spill of gooey/sticky smoothie on the counter. I would hate to clean the Mockett type of outlet...

Why not use clear glass switchplate covers and backpaint them the same as the backsplash. They should blend right in.

Here is a link that might be useful: Glass switchplate covers

Get these and back-paint them your backsplash color.

>I have also seen Mockett outlets. These are for desks, not generally used for kitchens. I would not do them for kitchen where large spills can occur. Even with caps, I would not want large spills. Recently, I made smoothie and I had a huge spill of gooey/sticky smoothie on the counter. I would hate to clean the Mockett type of outlet...

Well, while I don't want them either, they are available for lab work, and those must be pretty spill proof.

We just used a regular plug outlet panel turned upside down under our upper cabinets. It is completely hidden, you can't see it at all. We didn't want plugmold b/c it is bigger and added expense just for plugs I don't want in places I won't be plugging things in.

For areas w/ no uppers, we had cut-outs in the side panels of the fridge and appliance cabinet done and then we use a very shallow outlet box so it was recessed into the side panel. Then, we had a magnetic cover made to fit over the top out of the same material as the cabinets. You can barely tell it is there but when you push in that spot, the magnetic cover comes off and there is a hidden plug socket below.

Beagles - Pictures would be wonderful! I am very interested in the regular plug outlet panel and the hidden plug socket.

Unfortunately I'm not there and I have no pictures of this. I'll ask my fiance if he can go over to the house and take some but it might not be until the weekend. I'll get them up as soon as I can.

I used a mockett on my kitchen island and love it. We had to get one rated for kitchen remodel usage. It's turned off when not in use and up above any spills when on. It recesses to an area behind the pullout trash.

@kaismom: many cabinets are built with a recessed bottom panel, to allow installation of UC lighting which is hidden by the front panel. And, as you know, most UC lighting is not designed to be on display. In such installations, plugmold can go either against the back of the front panel, or against the back wall flush with the bottom panel. In either case, the plugmold is invisible. Similarly, our install placed strips of plugmold under the overhand of our island. Unless you bend down with your head lower than the countertop, they are also invisible.

To me, either option is visually far less obtrusive than any conventional outlet installed in a backsplash, no matter what kind of outlet cover or what color you paint it. And that's even more magnified by the use here of a glass backsplash, which will highlight any penetration even more dramatically. To me, that's much more of a visual defect than plugmold hidden under a cabinet.

Here you go, we got some pictures taken today:

Under cabinet plug:

From the front of this cabinet you cannot see it at all:

And here's the plugs recessed into the side panels:

When you look at the wall, it is impossible to tell the plug is there unless you get close:

I went with a an angled light/plug rail. My contractor put an extra piece of trim under the upper cabinet so that you can't see the light/plug rail when you look at the wall.

I also used the Mockett pop up plug. Code issues meant that I had to have a plug on the island, so I went with the least obtrusive option. It's close to my cooktop, similar to the picture above.

Here is a link that might be useful: angled power strip