WOW! Looks like some real pretty marbles! The ones with the seams do look like MK! Thank you all for sharing! I wasn't able to make it again! But I love hearing your stories! What I do notice with the three Tribute runs, is the friendship, the fun, the excitement, but most of all the humbleness for just being able to experience it! And that's a good thing! What a great name for this run! FRIENDSHIP