Help me decide on memorial pieces please!

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We have two angel babies. We have our second baby's ashes, but not our first one's. We will be getting an urn for our second baby as a displayed memorial, but I couldn't figure out what to do for our first baby. I had the thought to get a custom stuffed animal made (looking at having a linen one made on etsy). Then I thought, would it be weird to have a stuffed animal for one, and an urn for the other? It's almost kind of like one of our babies gets a stuffed animal, but our other one doesn't. So then I thought I'd get a stuffed animal for each of them. But we'll still also have an urn for our second, so then would it be weird that one of them has a stuffed animal and an urn, while the other one only has a stuffed animal? I thought about getting a stuffed animal for both and putting our second baby's ashes in theirs instead of in an urn, but we have pets and I just don't want to chance anything happening to their ashes if a pet were to get ahold of the stuffed animal (they'll be up on a shelf, but you never know. Especially with cats). I know I'm totally over thinking this, but that's what I do lol. And I just want them to be equal, you know? But it's hard when we have ashes for one of them and not the other. So I would love your input on what makes the most sense here