Umpire Equipment

[Roman Konecny]

I am an amateur umpire from Europe and such as would ofcourse like to buy some umpire equipment in USA, which I am visiting for next few weeks.
I will be in Minneapolis. Please help me with finding some good stone shop where I can spend some money on it? Preferably close to Golden Valley. I can't buy it by internet because online shops usually did not; a) accept non USA credit cards; b) send stuffs to hotel address;
Thanks you for any help.