Ocean in a Bottle

So this was a super neat activity that Monkey A really enjoyed!  Admittedly, it could have been much better if I had some mini seashells and/or small plastic fish, but she didn't seem to mind at all!  

I used some empty small Gatorade bottles, water beads, blue food coloring, sea salt (you could also use sand), glitter, and baby oil:

 
After I poured in the salt, Monkey A added the food coloring:

I helped her add some water:

And then we mixed in some glitter and beads:

I later added some baby oil to make "waves"...it was really neat and she loved shaking up the bottle!