I came across a discussion of "censored rhyme", a.k.a. "mind rhyme", a technique I'm familiar with, although I don't think I had a name for it. Anyway, here's my news-of-the-day contribution.
I put all my money in rubles,
because I thought Putin was smart.
But now my big bubbly investment,
is starting to smell like a... foully aromatic raspberry tart.