Please be carefully and dont hurt yourself when you broke the bulb.
When I have another Bulb I will make pictures from step 2, 3 and 4.
(sorry for my bad english ;) for mistakes write me a message)
1. Please use some cloth around the bulb for safety.
I used a old sock.
2. Go with the Knife under the contact from the Bulb and take it off
3. Then destroy carefully the black glass from the Lightbulb with a small hammer.
If this doesn't work use a Needle Nose Plier and crush the black glass.
4. With the Allen Key break the glass inside of the bulb.
(Perhabs you need the hammer again)
!Watch out, i have broken my first bulb with the Key :(!
5. Now you can put the Light Bulb Vase in a wooden ring or something else.
I have the ring from a curtain rod.
6. Fill in some water and a nice-looking flower.