attention grabber megaphone with striped patterns and circles, 3d

attention grabber megaphone striped patterns symbol circles 3d loudspeaker loud attentiongetter seeker promotional tool advertising marketing attentiongrabbing device attentioncapturing attentioncommanding eyecatching attentiondrawing attentioncatching vibrant colorful colors bold striking standout attentionseeking drawing material design strategy shape pattern visuals graphics symbols