This strip appeared in issue #203 of Linux (Pro) Magazine.

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↓ Transcript
[Panel 1: Elvie is talking to her sister, who is holding Elvie's baby niece. Elvie is holding some wooden blocks with characters on, spelling out "GNU/LINUX"]

Sister: That's lovely -- but she's already got some alphabet blocks

Elvie: These aren't alphabet blocks…

[Panel 2: Outside the house, a dumper truck is delivering hundreds of wooden blocks with various glyphs on them]

Elvie: …they're Unicode blocks!