Here's mine. It's très cool.
# 37 chars (between the {...})
sub seq{shift=~join'.*',map"\Q$_",split//,pop}
Update -- after seeing chipmunk's code, which beats mine, I offer one minor adjustment:
sub seq{($t=pop)=~s/./$&.*/sg;pop=~/$t/s}
Although, should the $t by my()ed? I'm all for strict-compliant golf. Anyway, I changed the @_ access to pop, and added a needed /s modifier to both regexes. It makes it longer than chipmunk's, but doesn't break on cases involving newlines.
japhy --
Perl and Regex Hacker
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