It is important to keep royal icing eyeballs on hand.  
That is, of course if you are a cookie/candy/cupcake maker.  
I posted my eyeball post on somewhat simple last year and I’m sharing it here today!  (Yes, I’m almost 4 years into blogging and just now getting that you should repost your original content on your own site after you guest post.  I’m a little slow with this stuff.)
It is so fast and fun to mass produce these little candies made from royal icing.
You will just need 2 colors of royal icing.  For the recipe and other tips, 
In order for the eyes to end up flat, we are going to do the “wet on wet” technique.
This means that as soon as you put a dot of white (or a couple), you put a dot of black right on top, before it dries at all.  The key is to have the right consistency of icing.  I used about a 7 second icing for these. For clarification on that, see post mentioned above.  If you wait for the white to dry, you will have more 3D looking eyes.
You can make different style eyes by taking a toothpick and dragging the icing out a little.  
Then put the black dot on.  All of your eyes will need to dry a full 24 hours before they pop right off your parchment paper.  Then you can just stash them in a zip-loc bag until you need them.
And when will you need these, you say?  For your monster cookies, silly!
I have a little Frankenstein cookie cutter and made some simple monsters.
It is extra easy when your eyes are already made.  
After I frosted the green, I just dropped two eyes in the wet frosting.  
If you want to wait until it dries, you can adhere your dry eyes with a dot of fresh icing.
But even without that cutter, you can just cut rectangles our of your dough with a knife and make a similar monster.  I just couldn’t decide if I wanted a nice or mean monster.  I think I prefer the friendly unibrow, smiley one, but you can decide how you like your Halloween monsters!
I have room mom stuff on the brain, so I’m thinking of REALLY simple cookies to make with kids.
Even a simple square can be a monster by placing eyes and a mouth on them.  You can come to class with the base layer frosted, then let the kids put the eyes and mouth on.  Then they can eat up!
I also did some random blob-ish monsters that were so fun to make!  
Just do some blobs of icing, and place some eyes on.  They turn out so cute.
Then my kids had the idea that they wanted the monsters to be saying something.  So, they had fun with some edible ink pens (americolor brand).
Your eyeballs will come in handy when doing tons of Halloween/monster treats.  
Decorate a brownie, or cupcake with these little eyes and your kids will have a blast.
I’m sure a lot of you out there are doing some Halloween baking this weekend!  Good luck!
I’m wishing you successful eyeballs, monsters, witches and pumpkin treats!