Cool! Okay, metallic pigments - I get Jacquard Pearl Ex. You can find those on
www.dickblick.com if you don't have a Michaels or Hobby Lobby near you. And if you go to Dick Blick, grab the Colour Shapers - the minis are the size you want. Get both the firm and x-tra firm. Trying to apply powdered metallic pigment with a brush results in a glittery dust explosion. These allow controlled application.
I also used a controlled application of Reaper Gray Liner and a black wash to pick out the details.
I have a video on the metallics on my youtube channel that should get you started.
Here's the cork base I did.
Sorry for the WIP pics.
I first sealed the cork with brush on sealer so it wouldn't leak then painted my water color for a base. I applied the trimmed plastic blisters over that then built up the resin "water effects". I purchased the expensive Woodland Scenics winter kit but realized the stuff they had me using was stuff I already had around the house. Mop and Glo floor polish works great as water - apply it just like the water effects in thin layers, allowing each one to cure for 24 hours.
Since you're doing a hockey ring, you won't need all the snow build up but the snow base is actually Heavy Carvable Modelling Paste I got at Hobby Lobby.
The ice is actually the only product I purchased that I can't easily replicate - the crushed glass package from Secret Weapon. Although it's mixed with Woodland Scenics Realistic Water, which I replicated with the Mop and Glo (the floor polish is acrylic resin which is the same thing as the Realistic Water).
In that Woodland Scenics kit is also stuff called Water Effects that you can use to make icicles and stuff like that.
I replicated that with this:
Here's a pic of the test I did to make sure.
I used an old nonstick cake pan - much easier! Allow to dry and it will dry clear, peel off and use more of the heavy gel to "glue" it in place. If you don't use a nonstick surface it will rip when you peel it off and the wax paper they included was crap, the old cake pan made it sooo much easier. I think Sproket's thread has photos of stuff he tested for actual snow or ice bits but I like the crushed glass the best - YMMV.
And you won't need the calcite crystals I used either. lol! But that's basically it - it's all about building it up in layers to get the effect you want. As long as you are patient and don't rush it, you should be good to go.
Hope this helps!