According to some local historians, the throwing of confetti is a typical tradition from Basel that later spread to the rest of the world. While there is no proof for this theory, the amount of confetti used during Basler Fasnacht is huge in comparison to other carnivals.
Originally, sweets in the form of small sugar balls known as confetti (an Italian name, similar to the English confectionery) were given away or thrown at the crowd during the parade. After this practice was prohibited in the 19th century, small shards of paper were used as a replacement. Until it was banned in the second half of the 20th century, it was also common to use straw instead of confetti, although wheat chaff is still sometimes thrown in some of the outlying towns and regions.
In the Basel German dialect, confetti are called Räppli, and only single-coloured confetti can be purchased in Basel. Confetti is available in all possible colours, but never mixed. This was decided by the regional confetti manufacturers to prevent the once-common practice of reselling "used" confetti. Throwing mixed confetti is seen as very bad form, since one would have picked it up from the street, which is obviously an unhygienic practice.
For spectators, there is the ever-present danger of being attacked from behind by a confetti-throwing Waggis, especially if not wearing a Carnival badge (see below) known as a Blaggedde (which sounds similar to plaquette to French and English listeners). It is an unwritten law that masked and/or costumed participants are not subject to confetti attacks.
By the evening, the routes of the Cortège are ankle-deep in confetti. Even so, Basel's sanitation department succeeds in clearing away this mess within two hours during the night, so, by the following morning, there is little evidence of the previous day's events.