I just think like JimmyVe...
what your planning to do with a colony when teaching is done?
Or are u planning to hold´em for a longer project?
Please don´t think just to set´em free after teaching the kids.
About this we had several discussions in the german forum, and setting them free is not favoured, cause it may harm local flora and fauna.
And please also don´t think about killing them after teaching... i won´t explain further. (no need i hope)
If u need them just for once showing them, i would take dead workers. Perhaps u can even find someone with an even bigger exotic breed here...
Another way was to search for good photos here... if help is of need just call me via personal message.
And just for the end... "i don´t want to act like a teacher" with this post, i just want to give an impulse, EDIT especially according to your post
http://www.antstore.net/viewtopic.php?t=4955&highlight=
Greetings to the isle
Simon