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Tara Voelker's thoughts. A lot about video games, a little about life
So, this past Halloween I decided to make a little sister costume. And although I posted how to make this super quick costume, I never talked about how to make the most awesome piece of it – the Adam Syringe. After a couple emails and comments though, I thought it would be useful to have a how to on this… so here we go!
Now, you have quite a few things to gather together, so let’s start with a list of what you need, and were you’re going to get these items. The list is below, and then I have a picture showing what I’m talking about below so you get an idea what these parts end up being.
First you’re going to need to gather up everything you’re going to need for this project:
So, let’s break down all of those items become this:
Well, like this:
So let’s get started.
Now, a large portion of the needle gun is already done for you because of the gas pump. So let’s go on from there.
Gas pump body:
The Needle Tip
It should now look like this:
The Baby Bottle
It should now look like this, the larger image has the 2nd grey nipple circled so it’s easy to understand why you pushed the first one through the second one….
Attaching the bottle to the gas pump
This is where it can get a little tricky. Take the lid off of your bottle. Look at your gas pump top. For us, the gas pump top had a pattern in it.
Your lid has to be very securely fashioned to your pump because it has to 1) support the weight of your bottle 2) allow the bottle to be screwed and unscrewed. So we did the following.


Now- a word of warning.
If you have a better idea than epoxy, or know how to weld… do that. Because we learned something very important.
Gatorade eats through water proof epoxy if it’s given enough time to do so. It took like 12 hours.
If you don’t have an alternative solution, you can do what we did after we realized what was happening. We took a plastic sandwich bad and epoxied that to the lid to create a water tight seal to keep the Gatorade and epoxy apart. We also don’t leave it sitting around with Gatorade in it.
Final Steps
Hope this was helpful!
Pingback: My Easy-to-make Little Sister Costume « Thoughts from a (girl) Gamer
WHERE did you get a fuel pump? O.o
I searched “gas nozzle” or “gas pump” on eBay.com and found that one. A bunch appeared in the search, so you’ll have to sift through to find the right style. I don’t remember the seller’s name or anything, but there were a lot so you shouldn’t have problems finding one.
I wanna make one, I should tell my mother and father first.
thanks so much
this year for halloween i’m plainning on being a little sister and this really helped! thanks ^__^
im planning on being a little sister this year and its so cute because my husband (where 21) is taller than me and hes being a big daddy so i call him mr.b alot lol
you could also try different fillers for the adam. red jams and jellys or even a red hair gel type product could be good and you can always water them down if you don’t want them so thick.
Instead of buying Gatorade, or any other commercial red product, simply make your own ADAM.If you have an Asian store nearby, get some Agar-Agar powder (or just order it online). Otherwise, you can use gelatin, but gelatin doesn’t stay gelled as long.
Just take some water and add the desired amount of red food coloring. The best coloring to use is the food coloring paste used for cake frosting. Any place that sells Wilton products should have it. Next, take a small amount of water, and a very small amount of Agar-Agar powder (1/4 tsp or less), put them in a saucepan and boil them for a few minutes, stirring constantly. Remove it from heat, and stir that mixture into the red liquid and let it sit until it gels.
Now, here’s why Agar-Agar is better than gelatin. If the final gel is too thick, simply reheat it until it liquifies, add more water, and let it re-gel. If it isn’t thick enough, reheat it and add more of the powder, combine them, and re-gel. Gelatin won’t let you do this.
I was thinking the ADAM should look like a very thick liquid, not a solid gel, so, that is the final consistency that I was shooting for. You can make it as thick as you would like.
Another advantage of this method is that the gelled liquid can have flavor added to it, and, if the syringe is designed right, you could actually drink it through the nipple.