Just like mangle spam.

I have only one tactic:

1)Gently bounce crying kid.
2) Sing the following:

Hush little baby don't you cry.
Daddys going to sing you a lullaby.
If that lullaby won't sing.
Daddies going to buy you a diamond ring.
If that Diamond ring won't shine.
Daddies going to buy you a lowing kine.
If that lowing kine won't low.
Daddies going to buy you a buffalo
If that buffalo won't roam.
Daddies going to buy you a brand new phone.
If that brand new phone won't ring.

3) Repeat the italics until kid is asleep.

I will do this for up to an hour before I find the need to try and come up with new lyrics or swap tanking with Wulfa.