Underwater Pumpkin Carving How To by StumpChunkman
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My local aquarium (Aquarium of the Bay) does pumpkin carving underwater the weekend prior to Halloween. They were short staffed this year and wondered if I could lend a hand. I was more then happy to lend my support over the weekend, and brought my cameras and a friend along to try to get some shots of the process.

The following is what I learned about carving pumpkins underwater, for a crowd.

I should also point out that sk8ter20art posted a great video in his instructable carving a pumpkin underwater.

So hopefully I can add a few tips and tricks on top of what he's already gone over.

Please bear with me with pictures. I had a little more time day one to mess around. Day two the aquarium was understaffed and I had to help out with day to day chores while getting prepped to do my pumpkin. So there's no good set up shots for the second pumpkin. I was also solo on the first day, so there's no good in processing shots from that day. When you're underwater and on someone elses time, you kind of have to work with what you have. Hopefully everything makes sense though.
 
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Step 1: Create your Design

First and foremost, you need something to put on your pumpkin. There are books you can get different designs from, you can create your own, or you can try to copy something someone else did.

Also, remember where your pumpkin is going to go. I was carving for an aquarium, my signature batman symbol wouldn't really cut it in the underwater world.

For my first pumpkin, I decided to copy something someone else did. I did a google images search for "fish pumpkin" and on the first page I found a great Angler Fish.

For my second pumpkin, I did some research first. This specific aquarium has a lot of Seven Gill Sharks, and that's something a lot of people enjoy seeing. I decided I was going to try to figure out how to make a seven gill (since I couldn't find any designs online). I found a good greyscale image of a Seven Gill here. I pulled the photo into Photoshop, selected just the shark, and filled it with white (I planned on just taking the orange skin off of the pumpkin. I created a background layer and filled it with orange (to see what it'd look like on the pumpkin). I drew in a few extra details, and I was happy with my pumpkin pattern.

I've gone ahead and attached the photoshop file in case you'd like to see the process.
sk8ter20art says: Sep 28, 2012. 1:57 PM
thanks for the reference. nice carvings you got there. I was in at Ginnie springs in florida for a halloween weekend dive. i wanted to try it since hearing about it and i love to carve pumpkins every year anyway. A lot of people ask why would you do this, but then i realize they are not scuba divers and just ignore there comments.
sunshiine says: Oct 31, 2011. 2:32 PM
Awesome! I have never heard of this before. Thanks so much for sharing and have a happy Halloween!
Sunshiine
Penolopy Bulnick says: Oct 31, 2011. 10:19 AM
That is pretty amazing! I have never heard of pumpkin carving under water!
StumpChunkman (author) says: Oct 31, 2011. 11:34 AM
Thank you! If you hang around dive shops when Halloween is approaching, you'll start hearing about it more and more.
paganwonder says: Oct 31, 2011. 11:23 AM
Now I have another craft to go along with 'Underwater Basket Weaving'! I love being underwater for long periods of time.
StumpChunkman (author) says: Oct 31, 2011. 11:33 AM
Yeah. Usually my air goes fairly quick...but I was concentrating so hard, I found after an hour I used less then 1000 psi, which I was quite proud of.
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