I have several sturdy survivors which have earned their right to a bigger pot. I think they will be much happier with the extra leg room.
or ~~~ What to do with some leftover mastic ~~~ or ~~~ From Yuck to Yay ~~~
Step 1: Nota bene
This is an experiment. It remains to be seen how well this material will hold up to the weather outside. I'm hoping that a good coat of exterior grade paint should be all the protection it needs. I won't know till next year whether this is a really great idea or not.