Here is a great trick for the bottles that coloredsand.com sells. Take a regular sized (8.5 x 11) piece of paper and turn it sideways. Long way horizontal. If you cut this paper straight up and down in the middle you will have 2 pieces perfect for those bottles. WOW 2 for 1! You will end up with a 4 1/4 by 5 1/2 sheet, just set your printer to print your invite to that size. We reccomend testing it out on a regular sheet first to get the dimensions right.