The beginning: "Light tentacles"

I created my first fiber optic adapter in 2007 March. It was very clumsy but worked well. The idea was coming from a Hungarian macro photography forum. Here is a picture of the adapter:

I used 0.5 mm diameter optical fibers as I remember around 30 fibers per tentacle. Overall 4 tentacles were channeling the light from the external flash. I used eppendorf tubes at the end as light modifiers:

Attachment of the bundles was a bit complicated but using duck tape and cardboard finally I've created an OK solution:

And some result with the rig:

Positioning of the tentacles were bad. I've used a shrink tube to hold together the fibers and a copper wire to hold the position of the tentacle but it didn't work well. The laboratory test tubes were to small to work as effective diffusers. Nevertheless, it was a good experiment to prove the concept.