Here's the recipe:
Demon's Blood
Ingredients
Ginger beer (I'm using Old Jamaica)
Apple juice
Orange juice
Green food colouring
All you do is add the ingredients and mix it together till it's turned green. You can add whatever amount of each ingredient that you want. I usually mix it in a bowl first and then sometimes add extra ginger beer to my individual drink if someone else doesn't want as much in theirs.
The first time I made this in 2010, I also made another recipe from The Real Witches' Kitchen, which was a "vampire" drink. I didn't like that much but I'll include it here because someone else might like to make it. :)
Vampire's Blood
Ingredients
Milk
1 banana
Scoop of ice cream
Red food colouring
Chop the banana (if-like me- you don't like banana that much, you can just use a small amount). Blend it with the milk and ice cream and mix in the red colouring until it's turned red.
I also want to try making this orange hot chocolate: https://homeiswheretheboatis.net/2011/10/27/ghostly-peeps-fun-brownie-smores-and-peeps-hot-chocolate/
I found the recipe on Pinterest, along with this one for Fizzy Jack-o-Lantern Milkshakes: http://www.babble.com/best-recipes/fizzy-jack-o-lantern-milkshakes/ (redirects)
And a Martha Stewart one for Boo-Nilla milkshakes: http://www.marthastewart.com/313947/boo-nilla-shake-recipe?comments_page=1&
I can't make them all, so I might make the others next year. Hope you like the recipes if you have a go at making them. :) Happy Hallowe'en/Samhain!