Fireworks -LRB- devices -RRB- take many forms to produce the four primary effects : noise , light , smoke , and floating materials -LRB- confetti for example -RRB- .

Fireworks -LRB- devices -RRB- are made to have these four effects : They make noise , light , smoke , and sometimes produce floating materials -LRB- confetti for example -RRB- .
