Since I refuse to spend $230 for an LV pen (silly, what can I say ) - and although the suggestions here were great - I still wanted to find an orange pen to go with the Mono Koala Agenda I bought with the mandarin lining! Well success - found this pen - its tiny think and its 4" in length. Its actually made as a stylus for a PDA but its also a regular black ink pen! Found it on ebay and I believe they have other colors as well:
eBay: NEW CROSS MICRO PEN/ RETRACTABLE PDA STYLUS-ORANGE (item 320016749072 end time Sep-11-06 07:22:59 PDT)
eBay: NEW CROSS MICRO PEN/ RETRACTABLE PDA STYLUS-ORANGE (item 320016749072 end time Sep-11-06 07:22:59 PDT)