I've got 5 mugs in regular use, all designed by myself, as follows:
1 with photos of my cats on it.
1 with photos of the guy whom I think of as my son on it.
1 with photos of his children, whom I think of as my grandchildren, on it.
2 with photos of friends from the past on them.
Hanging alongside them, I've also got a super-size mug (bought from a charity shop), which I haven't used for quite some time. It's got a picture of Grumpy, from Snow White, on it.
Hidden away in cupboards, I've got a mug that was a souvenir from a conference I attended in Australia 35 years ago and a few spare mugs from charity shops (including one with a Christmas design on it, that I only use around the Christmas/New Year period each year).
I've also got some spare plain white mugs somewhere around the house from the days when I had to provide tea and coffee facilities to team leaders working on the distribution of Yellow Pages (when I was a regional supervisor).