I paint and play Warhammer 40k and I buy used models to save money. Those models were released with bases too small to fit in seamlessly with more recent releases so I needed to adapt them to the new larger size. I don't like the options that were available which placed the model in the middle of the new footprint, so boolean subtracted a 25mm base eccentrically from the middle of a 32mm base and cut it in half.