Prepare the syrup by stirring together the sugar, water orange juice concentrate and butter in a saucepan (the butter helps reduce foaming).
Cook and stir until it comes to a boil, then reduce heat and cook for 15-25 minutes, stirring frequently, until mixture thickens a little bit, then remove from heat (it will thicken even more as it cools). It should yield about 1-2/3 cups as it cools (will seem slightly higher at first because stirring increases the volume by introducing air into it).
To make the pancakes, have two plastic squeeze bottles ready, both with smallish tips, but one smaller than the other.
Stir together the flour, sugar, baking powder and salt. In another small bowl, whisk together the cooled melted butter, eggs, and 1-1/2 cups of the buttermilk.
Combine the wet and dry ingredients, stirring to make a batter.
Separate out 1-1/2 cups of the batter into a separate bowl and stir in the black baking coca and the rest of the buttermilk (1/2 cup). This will be your black batter.
Into the other normal batter, add the vanilla extract and a few drops each of red and yellow food color until it is a nice orange color to you.
Heat the griddle and give it a small wipe with cooking oil.
Making baby spiders:
Place some black batter into the squeeze bottle and fit it with a drizzling size tip (you may need to cut the plastic tip to size, but be conservative with it so you don't make it too big).
Make an "X" shape on the griddle with the black batter, and then fill in two more legs on each side of the "X" to make 8 legs, 4 on each side. Then squeeze out enough black batter to make a circle filled in on top of those. Cook until small bubbles appear on top, then use a butter knife to flip it over and cook the other side (a spatula is too clumsy for the baby spiders).
Making Spiderweb Pancakes:
Change the tip of the squeeze bottle to one with a little bit bigger opening. Make 3-4 crossing lines to make the structure of the web with black batter. Scallop more web from line to line to get a good looking web. If the tip jams or clogs, remove it and quickly rinse under running water- don't squeeze the bottle hard to dislodge it or a bunch of batter might shoot out and ruin your web (I did this).
Once the structure is made, use a small ladle to spoon orange batter to fill in the open areas of web. Let the pancake cook until small bubbles appear, then carefully turn with a spatula and cook the other side.
To make the Tarantula Pancake:
Place two dots of orange batter on the griddle and ladle black batter over it in a circle to make the body. Trust me, don't think you can put the eyes onto a pancake and then turn it. They will smear (I did this too). Once the little bubbles appear, carefully turn the pancake over.