The domain of outer communication of five-dimensional asymptotically flat
stationary spacetimes may possess non-trivial 2-cycles (bubbles). Spacetimes
containing such 2-cycles can have non-zero energy, angular momenta, and charge
even in the absence of horizons. A mass variation formula has been established
for spacetimes containing bubbles and possibly a black hole horizon. This
`first law of black hole and soliton mechanics' contains new intensive and
extensive quantities associated to each 2-cycle. We consider examples of such
spacetimes for which we explicitly calculate these quantities and show how
regularity is essential for the formulae relating them to hold. We also derive
new explicit expressions for the angular momenta and charge for spacetimes
containing solitons purely in terms of fluxes supporting the bubbles.