I found the tutorial here, but you can find that video as well as several others over at Dawn's Stamping Thoughts. I love her blog; she always has lots of new ideas, great tutorials, and she's so enthusiastic and cute I can't help smiling whenever I watch them.
I bought the hand sanitizers last summer at Bath and Body Works in Calgary, but I found when I tried to make the holder using the dimensions in the video, it was just a bit too small to fit the bottle nicely. It fits perfectly in the tutorial, so maybe the bottle sizes in Canada are just a slightly different shape. Not to worry, though -- after much ciphering and experimenting I made it work using 12 x 12 cardstock, and here are the final scoring lines that worked best for me for the 1 oz bottles I had.
Score paper at:
7-3/4" (here is where the difference is)
8-3/4" (and also here)
Using 12 x 12 paper makes the front flap end up even with the bottom of the holder, which is nice, but I wanted to be able to include a sentiment closure at the bottom (like the second one in the tutorial), so I trimmed 1/2" off that end of the paper (the end opposite the first 1/2" score) as well before cutting it into six 2" strips.
If you would like to find these Halloween-themed hand sanitizers, they are available on the Bath and Body Works website in the "Boo-tique", and I see there are lots of new ones that weren't there last year.
Here are a few of my favourites. I have to admit, I was running out of steam by the end, so some are more detailed than others, but I'm happy with the result overall. I've also been thinking about how to convert the pattern to accommodate a 1 oz bottle of irish cream or some other grown-up Christmas "treat". Yyyyuuuuummm!!! :o)