does anyone of anywhere I can purchase said items?
need to lighten up the boys wheels..

There no such thing as 24″ spokes, what size do you need?

Ha yes shouldve engaged brain before posting, I’ll go measure them up..

Never seen anything but plain gauge spokes in the lengths you need for 24″ wheels.

And its not that silly to talk of 24″ spokes, if you look at the lengths commonly available, there is a range of availability around what you would want for a 24″ wheel, then a gap, then a range for 26″ wheels, and so on.

Ryan Builds Wheels (other wheel builders are available) can cut spokes to length, so maybe you could use any if the butting allows. I used/from on my lads: https://www.cyclebasket.com/brands/aci.php

measure spokes in current wheel then buy said spokes – Lewis has sapim DB spokes in his wheels but you can also get C xray and DT revs. They are around 238mm for his rim/hub combo

I used DT Competitions in 1.8mm for a light 20″ wheel build. They were available in the length I needed from the factory without having them cut.
Ebay or Amazon I think.
Use alloy proloc nipples rather than brass to keep weight down.