I got two vintage (i.e. old and used) Jag bonnet mounts from down south and I suspect from about fifty years ago, and have had some fun turning the bases into very robust paperweights. If you lightened your wallet by three ten pound notes one of these could be keeping your remaining paperwork in order and safe from office wind blasts for the foreseeable future.
Now your £30 is between 10 and 15% of the total for one Rolls Royce mascot so unless you have one you want a base for, please don’t be asking if I can do a Roller one for the same price!
Have a great day!