Dump Truck Return Address Stamp Details Simply Stamps is rolling out our new line of Kid's Stamps. We want to help promote handwriting with these personalized return address stamps. Featuring a dump truck, this customized stamp will get any little boy excited that shows interest in building things. Our inks are non-toxic and safe and is good for thousands of impressions. Order yours today! Why buy extra ink? Your kids stamp will last for numerous impressions, much longer than the ink that comes with it. Purchasing extra ink with your stamp will ensure that you will get full value from your stamp for years to come. Order ink with your stamp and don't run out of ink on the day you need it the most!