[s1e6] Slutty Pumpkin 🆕 Must Watch

Because he lost her number, Ted spends every Halloween for the next several years at the same rooftop party, wearing the same "Hanging Chad" costume, hoping she will show up again.

While the "long paper" isn't a singular named artifact in the episode like the "Hanging Chad" costume, it represents the specific, nerdy details Ted obsessed over for four years while waiting for her to return to the rooftop party. Key Context from the Episode [S1E6] Slutty Pumpkin

In the How I Met Your Mother episode , "long paper" likely refers to the Tootsie Roll Because he lost her number, Ted spends every