Whether you buy in-store or on the Hobby Lobby website, you can’t combine coupons. If you’re lucky enough to have a Hobby Lobby coupon for the entire purchase, you won’t be able to use other codes for individual items. However, you will have the choice to opt for the coupon discount rather than the sale price. While coupon codes don’t work on sale items in most cases, you can use your coupon to get a deeper discount.