BA1b 3D - Time Machine 7

To make the top of the bell, I started with another sphere. I then cut off all of the bottom half, and only kept the small top area. In order to stay under the tri count limit, I decided to target weld the top half of the bell like below. This meant that I didn't have create more divisions in the top half and also didn't have any 5-sided shapes.

I then realised that I would need an inside of this bell, as a metal bell would be somewhat thick. One way to do it was to select the faces and extrude inwards, but that would mean I would double the amount of tris I had, jumping me over the limit of 10k. I decided to then create another sphere, of low divisions, and put it inside my bell. 

I then cut out faces where needed, and bridged or extruded the gaps between the two shapes so that the bell had an actual thickness to it.