I didn't have Tilly at the time I got married but moms dog Baby wanted to be in the wedding. Everytime I would put my veil on she would want under it.
We ended up having to make her a little veil of her own. She refused to take it off! I wanted Baby in the wedding but nobody else thought it was a great idea. She does get excited easily and then she goes into a barking fit. Here is a picture of me with Baby under my veil.