Can you add any symbols. For example a heart?
Symbols and font choices are not an option on this style. However, we could do a pendant like this that we could do either block or script style font and add the heart for the same price.
Also, does it come with an inside bag/liner to put the ashes in?
Bag is not included with this urn, as the funeral home or crematorium usually bags the ashes.
Is the engraving 20 - 33 characters counting spaces?
Yes, include spaces and punctuation in your count.
Mystic Blue pet urn is solid metal with a baked on deep blue enamel finish and hand tooled trim. The contrast of blue and silver create a beautiful memorial.