Well I did finish my Pogo piece. And there's good news. The iron on pencil thing I used to transfer the design doesn't *wash* out, but it does fade quite quickly under sunlight. This means I hopefully won't need to dye the fabric grey. I'm sure that would have looked nice, but I'm quite lazy.
I'm now working on a Bullwinkle quote blackwork project, which shall be amazing. Bullwinkle is fairly obscure, but the quote is not specific to Bullwinkle watchers so I'm confident it will be enjoyed by all.