I can't seem to find the answer.. I know that they need to "match", but is the reception card supposed to be on the exact same paper as the invitation? What about the other inserts? I'm DIY'ing this and using rising museum board for the invitations (very thick, going to letterpress and edge paint). Not sure if I can use a cardstock of more typical thickness for the reception, rsvp card etc.. it seems totally weird to have everything be so thick, but also kind of weird to have everything else on different paper. Thoughts?