How should I send the thick posters that are larger than A4?

[MarshallMathers]

I have a few GoT posters form the poster collection that I think would look great signed, but I'm not sure the best way to get them to the actors / actresses. Anybody have any idea?

[fromuk2014]

I have a few GoT posters form the poster collection that I think would look great signed, but I'm not sure the best way to get them to the actors / actresses. Anybody have any idea?

Send them in poster tubes, rolled.

If you don't use tubes you will likely need large envelopes and boards to reinforce the posters to avoid damage where a tube will be cheaper and sturdier.

You could label one tube to the studio, actor or manager and put that inside another tube which you could label with your return address.