Like pocky!
Or you could be a paranoid pragmatic jackass like Shirogane and bring Joe's medical kit...Digimon, first season. Its much harder to find an image of this than I originally thought so here's a different one instead...

[url=http://img-cache.cdn.gaiaonline.com/25c5c49b7091b90cf476a69b1f269564/http://img.photobucket.com/albums/v677/seto_kaiba_01/Digimon%20Season%204/JPShibayama.jpg?t=1191896132]This confused me[/url]

EDIT:
[url=http://fc01.deviantart.net/fs71/f/2012/133/4/2/digimon__taishiro_by_sennel-d4znzs0.jpg]Awkward~[/url]

Oh! Here's a really good cosplay of the ENTIRE team complete with Joe's medical bag.
[url=http://fc06.deviantart.net/fs31/i/2008/224/8/b/AX_08__digimon_by_kureinai.jpg]Cosplay[/url]
Its pretty important that the bag is in there considering its part of his character as the holder of the crest of reliability.
Also, T.K. might be a trap. Warned ya.