▁by ▁volunte ers ▁or ▁h ired ▁workers . ▁Del icate ▁flowers ▁are ▁placed ▁in ▁individual ▁v ial s ▁of ▁water ▁and ▁set ▁into ▁the ▁float ▁one - by - one . ▁ ▁The ▁Tournament ▁of ▁Ros es ▁is ▁the ▁largest ▁consumer ▁of ▁flowers ▁in ▁the ▁world , ▁and ▁flowers ▁arrive ▁from ▁all ▁over ▁the ▁world . ▁ ▁Many ▁flo ats , ▁along ▁with ▁their ▁drive ▁train , ▁include ▁computer - control led ▁robot ic ▁mechan isms ▁to ▁animate ▁the ▁flo ats . ▁ ▁Most ▁float ▁drivers ▁can ▁only ▁see ▁the ▁ground ▁below ▁them . ▁ ▁An ▁observer ▁communic ates ▁by ▁inter com ▁to ▁the ▁driver . ▁ ▁Most ▁obser vers ▁are ▁hidden ▁within ▁the ▁float ▁and ▁have ▁limited ▁visibility . ▁ ▁Each ▁float ▁has ▁a ▁Tournament ▁Member ▁( Float ▁L ia ison ) ▁assigned ▁to ▁it ▁who ▁she ph erd s ▁the ▁float ▁from ▁the ▁float ▁bar n ▁to ▁the ▁formation ▁area ▁and ▁down ▁the ▁para de ▁route . ▁Most ▁ride ▁on ▁motor ▁sc oot ers ▁although ▁some ▁walk . ▁ ▁The ▁Float ▁L ia isons ▁communicate ▁with ▁the ▁float ' s ▁observer ▁by ▁hand ▁signals . ▁ ▁At ▁the ▁two ▁corners ▁other ▁Tournament ▁M embers ▁direct ▁the ▁flo ats ▁in ▁addition ▁to ▁the ▁Float ▁L ia isons . ▁ ▁It ▁is ▁estimated ▁that ▁it ▁takes ▁ 6 0 ▁volunte ers ▁working ▁ 1 0 ▁hours ▁a ▁day ▁for ▁ 1 0 ▁days ▁to ▁decor ate ▁one ▁float . ▁▁▁ 2 0 ▁da is ies , ▁ 3 0 ▁ros es ▁or ▁