Anyway, for starters you will need:
Embossing paste, which comes in array of colours, I've got Black & White here. A stencil, stencil tape, spreader(s), glitter and of course a piece of cardstock. I used Clarity Theuva card to do these on, and found it worked beautifully. I also discovered that because the card has a shiny surface, if you wait until the paste is dry, you can scrape off any overspill with a scalpel.

Placing your stencil onto the card, add some stencil tape to all four sides- I actually used tape the length of the sides at first, to stop me getting any paste onto the card where I didn't want it. Once you get a bit more practiced at it, you could use less.
Scoop out a dollop of paste, and drop it onto the stencil. Its better to put it on part of the stencil that isn't part of the design, rather than onto the design. You will find that trying to spread it from the open areas will result in pushing it under the edges of the design, giving you a blurred image.

To remove the stencil, peel off three sides of the tape, leaving a fourth as a 'hinge'. I found for me the easiest one to leave was the bottom one, choose whichever suits you best- top, bottom or one side. Carefully lift up one edge of the stencil and tilt it towards the hinge, then peel away the whole thing. If you leave a hinge, it prevents the stencil slipping or sliding.
Now- getting your stencil clean. I have seen a lot of people recommend you have a dish of water handy to drop your stencil into- I found that messy, time consuming, and hard to be certain you have the stencil flat while cleaning.
What I found works perfectly is to have a baby wipe lay on your desk, and to place the stencil onto it as soon as you peel it off. Then fold the baby wipe over it, to stop the paste starting to dry on the stencil.

Now you can leave your stencil while you do the glitter bit.
I started off doing black cats, so tipped a pile of black glitter onto the paste.
Tip the glitter off, and hey presto! one glittered black cat. Put aside to dry, and I left mine overnight to be sure.

After I'd wiped off the goo, I lay it flat again on a piece of kitchen roll, and just rubbed my had over it to dry it off.
I found this to be the easiest way to clean them, and the least likely to cause a bend in your stencil. If you do get a bent stencil, I have heard it recommended to run them through a die cutting machine to re-flatten, but I haven't tried it personally, although it ought to do the job.



All clean and ready for use again.
What I liked about this stencil too, is that I can flip it and have the cat facing the other way!
Now I decided I'd try some other colour combos- so I switched to white embossing paste, and brought out some Crystal glitter and a few shades of orange and brown. It worked better than I expected, to be honest, and I have some nice black & white cats, some tortoiseshell and whites, and a rather fetching Ginger tom!He came out much better than I anticipated. If you are using a mixture of glitter colours, always tip the excess away from your image, and if you want patches in the middle of the image, turn it upside down quickly, so the glitter doesn't spread over onto other areas of paste.I used the tip of one of the thin spatulas to add this glitter. I tried a mix of browns for the wall on these ones.

Supplies:
Sweet Poppy Stencil, Stargazing
Embossing Paste,
White card
Glitter
Spatula(s)
Stencil, or low tack, tape. Mine is Woodware, its very low-tack,bought at the NEC, its about £2 a roll. DO NOT buy this from Amazon- they want a fiver a roll for the same item!