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The secret is to have the CD just fit inside the big lid and have the small lids fit just over the center hub for the CD. I recommend bringing a CD-ROM with you to the grocery store to test against lids before you select your peanut butter brand. (Even though neither of these is a PB jar lid. That's just my regular go-to for this project.)
Likewise, the CD's get blue ink, which ends up translucent. I apply a couple of layers, and don't worry about getting a full coverage. The top one (that will go with the army men) is all straight lines, left to right. The bottom one is lines from the center. The CD's also get gloss PVA sealant, applied thickly. This will meld the ink and give the surface of the water texture. Again, the top one is all straight lines across and the bottom one is puffs, painted out from the center.
Note that it is big enough to create several different line of sight and movement conditions. Possibly a hazard, too depending on how slimy and filthy you think the water is.
This one produces a brighter, ripply water effect. |