The family went out for dinner the other night. When we got our order number, a Mandarin pun struck me, so I got my son to pose with me along with the number.
他 跟 爸爸 在 座,他 的 号码 是 八八
tā gēn bàba zài zuò, tā de hàomǎ shì bābā
"He's sitting with his dad, his number is 8-8."
There's of course a difference in tone between 爸爸 bàba ("father") and 八八 bābā (8-8), but apart from that, the words sound alike.