This is no clowning situation. The vases are specialized for just such a situation as water balloons. Attach at the top and fill to a fun height. Insert flower and hope for the best in non-cat realities. “Swell Vasen” by from the multi-fauceted mind of industrial designer and resident of Saarbrücken, Germany, Anika Engelbrecht

In the best environment, (catless, mentioned above,) the cleanup must be real easy. A lovely concept for a birthday party? Maybe. Or for a regular color-spotted house? Yes. Die Blumvasen.