Can technakohl eyeliners be employed for back again to mac?

Qusetions: for that recycling method at M.A.C, do they accept the packaging of technakohl eyeliners?

http://www.maccosmetics.com/product/shaded/151/1347/Technakohl-Liner/index.tmpl

Thanks (:

Answers:Yes they could :) pencil eye liners cant tho :)