Oh Yes they can! This Sears toy Space Bull Horn and Walkie Talkie looks right for the job!
Battery operated with twiddles, buttons and a scope, I would have loved it as a young astronaut hailing my mates drinking Tizer on the space station.
I assume a bull horn is a loud noise maker.
You could scare your big brothers with the horn and then buzz your Mum on the Walkie Talkie and ask what's for tea!
It does look good, I love all the decals of dials and gauges. Very Matt Mason!
Is this something you had? I saw it on an old auction so saved the snaps.
Do you like it readers?