If it's short notice and you don't mind brass necking it just go in the argyle house end and ask the woman at reception. Explain what it's for and how your sorry it's short notice and I'm sure they'll give you something. Done it twice. first time they gave me five tours to raffle as prizes for Polloks 2000's and the second time I got an RAF flag signed along with a letter of support to send out to my pal who was on Afghanistan at the time. Good luck.