Dendrobium Baby! What to do with the Keiki? Advice Please.

[Triffid]

Well having become comfortable with Phals and having given up smoking for nearly a month now (Woot!) I rewarded myself with the purchase of two reduced Dendrobium Noids.

One of them though came with the bonus of a little Keiki, which was discovered as I was checking out the roots.

The Keiki came away with ease and is now sitting in a shot glass with the roots just skimming some water.
The baby is approximately an inch (2.5cm) tall, looks heathy enough and seems to be growing.

This is my first Keiki and now I have a choice.

Mount? Pot? or Other?

Mounting Options
The mount is triangular in shape, the wood is unknown though it's old driftwood (which has already been cleaned several times) and is heavy for it's size.
The potential mount can be hung or left standing. It has a dip on one side when it's stood, which would almost act like a pot, and has drainage cracks in the bottom of said dip.
Though in time, I'm guessing, I would have to move the plant on to another mount as this current mount is roughly the same size as the mother plant?

Potting Options
The smallest proper pot I have is 12cm, and the bark I have I presume would have to be made a bit smaller?
Other than that pot I would have to convert an old yogurt or one of those take-away dip pots (that's not difficult though).

Other
I am really unsure of what would be the best option.
I'm also open to other suggestions of how to keep this bonus baby going.


Please help? Thanks in advance for any advice and suggestions.