Yes. Pet urns come in many sizes, and you should select one appropriate to your pet's size under normal and healthy conditions. Typically, 1 pound of body weight is equivalent to 1 cubic inch of cremains. For example, if your pet weighed 30lbs, you might select an urn that's 30 cubic inches.  With smaller keepsakes such as jewelry and mini urns, these items hold only a small quantity of ashes and are designed to keep them close to you. Some people may want to purchase a larger pot for most of their pet's cremains and a smaller keepsake to carry with them.