Based on the answers provided, the following corrections need to be made to the 3D object:

1. Modify the object to resemble a thermometer. This could include adding features such as a scale, numbers, or a tube for measuring temperature.
2. Attach a long thin rectangle to the edge of the circular base. The height of the rectangle should be about 7 times its width.
3. Ensure that the bottom of the rectangle touches the circle without being fully merged.
4. Add a small circular hole near the top edge of the rectangle. 

Please note that the circular base of the object is correct and should remain unchanged.