Beer bottles are ideal!

The brown ones are excellent cloners.
Fill them with fresh tap water daily.
(The Chloramine acts as a fungicide and prevents "slime root")

Hold them next to the plant, then snip n dip.
Put them under low light and hand them out when they root.

I used to do them this way for hydro.
Went back to coco but I still clone in water, then pot 'em when ready.

Aloha,
Weezard