I couldn’t find sleep tonight (*) so I did two small variations on the Ruby official logo for Ruby France, since they are looking for a new logo (**). Double-clic to enlarge, single-clic to reduce back to the small images (***) :

 

I also like Greg’s proposal.

(*) it happens very often these days
(**) No, I don’t know Ruby
(***) Doesn’t work if javascript isn’t enabled in your browser (usually it is) + Internet Explorer doesn’t correctly render the transparency ; please use a real browser instead

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