Oh sure...no worries. I've seen 'em folded, rolled, flat, whatever. As long as they get there in one piece!! Some people like to put them into a plastic bag so there's less risk of damage...then it's harder to fold and you have to get a larger envelope. But do whatever you can!!
Have a great day BK!! And welcome to the board too! I see you just joined. Hope you're making friends and having fun with the gang here! Nice group of folks.