Thanks to everyone who has ordered masks. The Mr Bahtinov retirement fund will be absolutely flush with cash after all the first batch of royalties are sent.
My experience over the weekend: On large masks - over 150mm - the 3mm acrylic is not the correct material - I managed to break mine - when I deliberately dropped it - mind you it still worked great - with the spikes unaffected by the missing bit around the edges.
The smaller ones seem to be fine, but as I have already told a couple who ordered the bigger ones: I have substituted a 1.6mm ABS plastic that is more 'drop-proof' for the same price as the acrylic.
Anyway, I have probably time for one more batch before I am away, so let me know. Up to 305mm masks are $10 freight in Australia, send me a PM and I will let you know the details for bank transfer.
Happy Masking
Clinton