Either the rose or apricot ones. These were produced from the early to mid 1990s as I recall, in both self ballasted and seperate formats.
I'm not too fussy about which type. Obviously, for photographic purposes for my site, a working lamp is preferable to a dead one, but it doesn't need to be new. Packaging's not an issue, but again, preferred.
Any other non-standard colour CFLs are sought after too.