15 Modern Iron-On Patches These are mini button-shaped iron-on patches, approximately 1.1 x 1.1 cm in size. How about using them for kindergarten or school preparation, or for your handmade creations? Use them as accent patches on hats, bags, or purses with the same shape and pattern as a marker for your child's belongings! We have many of the same items and different patterns. Discounts are available for bulk purchases. Please leave a comment.