It looks like E-Bogu can ship to Columbia. I went to their "schools and dojo" portal: http://www.e-bogu.com/EDDP-E-BOGU-Do...gram-s/173.htm
They have kid's Karate uniforms pictured only, not Judo.
I am not sure if the price would be low enough? Otherwise, it might work to have someone local make them. You could have a quantity made and sell them throughout the year. Someone had some made for our organization and they turned out very well. They are as good if not better than what I usually order.
I usually order mind from Ki International, they don't ship to Columbia though.