My idea was to be able to make the ender crystal. This block wouldn't have the exact effect as the ones found in the end. It wouldn't have the explosion when destroyed, to prevent greifing, wouldn't drop bedrock when destroyed like the current ender crystals, and it wouldn't heal the ender dragon, to prevent "greifers" spamming them in the end.
The crafting recipe would be somewhat similar to the beacon, but involve flint and steel, as the ender crystal has a flame effect, and a huge glowing orb.
:Flint and Steel:
( Steak being the nether star )
I haven't given this too much thought, and no practical uses have popped into my mind yet. so It'd be mainly for decorations, but if you have thought of any ideas, or would like to add your opinion or would like to see modifications to my idea, be sure to reply.
I'm sorry if this has been posted before, I tried checking but didn't find anything!