Support individual, or multiple, 4H exhibitors with an extra donation for their 4H livestock project. Add-On Donations can be gifted in any amount, from $5 and up. Just find your exhibitor(s), enter the Add-On amount you’d like to gift, and click the Add to Cart button; repeat for each livestock exhibitor to whom you’d like to donate. Then, complete your purchase online using your credit or debit card, or select Check if you would like to pay via check. Our mailing address is included on the checkout page.