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Make a fossilized Dinosaur Egg

Make a fossilized Dinosaur Egg
Using one bottle cap and some oven bake modeling clay you can make a really realistic looking Fossil model. Maybe it's a dinosaur fossil or maybe it's a dragon fossil, who knows. All I know that until you start making them these things were amongst the rarest things in the world.

if you do it right you also get to do a little bit of fossil hunting as you chip away at the various layers.

A really quick fun little project to do just before the end of the holidays.

What you will need:

  • one round ended personal care bottle or aerosol cap
  • some oven bake modeling clay (Sculpy or Fimo) in any colour
  • Some tile grout or plaster or other mix-up paste filler that sets
  • scissors, marker, different coloured paints (spray)
  • glue gun (not essential but helps it go along nice and quickly)
 
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Step 1Mark and then cut up the bottle cap lid

Mark and then cut up the bottle cap lid
Loads of personal care products have soft plastic (usually poly-propylene) caps with rounded ends. For this project you need at least one. Although if you want to make a whole fossilised nest, then you will need more.

First mark the cap by drawing a line that divides it in half vertically over the top, then mark two smaller divisions, one for each half. Try and make sure that these are the same size as each other, although you will be able to trim to match later.

If you have a nice soft reasonably thin walled cap, then you should be able to cut it out using strong scissors. If it is thicker and tougher you may need to use a fret saw. Don't use a craft knife, the cap is very hard to hold (slippery and squashy and a knife is not the right thing to use to cut it).
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39 comments
Mar 15, 2010. 9:11 AMBen Harden says:
Exscuse the blurry picture, but here is what I made.
I decided upon a dinosaur baby in a jar...
Aug 19, 2009. 8:00 AMDragon416 says:
This is really cool. My sons will love giving this a go. Thank you so much for posting this and for taking great pictures.
Jun 25, 2009. 9:32 PMquesoman says:
these are so kool!!!!!!!! i wonder i could make edible ones out of gelatin????
Feb 15, 2009. 12:46 PMSpaceDucky says:
this is awesome. i made three of them (although one was a variation) and gave them to my sis. she loves them
Feb 17, 2009. 4:58 PMSpaceDucky says:
yeah but i don't know how to post them. Do i just copy and paste? PS: I made ours dragons
Feb 18, 2009. 2:34 PMSpaceDucky says:
thanks here you go. i decided not to make the eggshell so they're not technically fossils but whatever. if you want more detailed pics just ask.
Sep 17, 2008. 5:23 PMbounty1012 says:
amazing... just amazing.
Sep 5, 2008. 6:47 PMJerBear says:
that stuff's amazing! i'll post a picture of my alien egg soon, i haven't gotten around to taking pictures of it yet...
Sep 4, 2008. 6:51 PMchabias says:
You make the coolest stuff! What talent & imagination! Checked out dadcando too. Excellent site.
Aug 29, 2008. 7:10 PMmg0930mg says:
Another awesome i'ble. Great Job!
Sep 3, 2008. 2:09 PMfungus amungus says:
You do know that we're going to have a faberge egg contest coming right?
Sep 3, 2008. 3:58 PMfungus amungus says:
Hopefully very soon.
Sep 2, 2008. 9:30 AMBabyshoes says:
These are lovely, and the dragon sounds fantastic - please do post pics!..
Sep 10, 2008. 3:35 PMItsTheHobbs says:
Hot glue egg, I presume?
Sep 5, 2008. 5:18 PMhurtzmyhead says:
wow man I am trying that one and putting it on my wall!
Sep 5, 2008. 6:37 PMhurtzmyhead says:
na i was thinking about both :) you know a in the egg and a baby. I wonder how many people you could fool by making one and saying that its proof that dragons exist/ existed!
Sep 3, 2008. 7:30 AMBabyshoes says:
*awe* Wowwwww!
Sep 2, 2008. 9:25 PMdarkmuskrat says:
Ah man, this is great, it looks like one of those kits u can buy in a sand block and have to chisel away to reveal it....really top notch btw
Sep 2, 2008. 11:40 AMuguy says:
Very well done. Great instructable. Thanks for sharing.
Sep 2, 2008. 3:05 PMItsTheHobbs says:
wow, another really great one!
Sep 2, 2008. 10:49 AMDramatic Imagery says:
Wow! Great job! =)

Thanks for posting this instructable.
Aug 29, 2008. 1:38 PMcowscankill says:
Wow. that looks great! I wonder how i can do this for like fossilized plants... hmmm... well, another great instructable by captian scarlet :)
Aug 30, 2008. 12:16 PMcowscankill says:
:D I have to try that for a school project. Might look pretty dern sweet.

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Author:KaptinScarlet(dadcando)
Eldest of five, son of two doctors, 10 years in Graphic Design and marketing, then retrained as a Biomedical Materials Engineer, don't ask me why, I think it was because I had always wanted to design ...
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