Articulate Icons

Hi All

I wondered if someone might be able to point me in the right direction?

I wanted to use the attached timeline interaction slide, but change the icons on the makers.  

I like the style of icon and the colour (white) but just wanted that to change to something more appropriate for the project i am doing.

Would anyone know where I could get these or similar icons.  Just to say i want to be able to put the icon on the marker.

Many thanks

Lenny