What is the most creative build you have made

[The classless]

pictures and explanations would be nice
mine is a quarry auto placer (no pics because world got deleted and I forgot how to build it)
so how about you

 

[YX33A]

My best builds were "vanilla" things, but they were all Gaslighting people.

 

[DriftinFool]

Tech mod wise, it would have to be my tunnel borer using the 1st version of RP2 frames(no pipes in frames yet). It dug the hole, lined the walls and ceiling with cobble, and placed torches every so many blocks. It had a looping circuit made with logic gates and timers.

Spoiler

I did start building a city once.......And my buildings on a server once.

Spoiler

 

[The classless]

That looks really cool