Are you into the look/style (cool, me too) or the actual
brand (kinda weird, capitalism does sick things to people
)?
Either way, most providers I've met have been down to fulfill simple apparel requests, especially if I bring the item(s) myself as a gift. This is especially true when you're interested in gradually demolishing the piece of clothing, or plan to get bodily fluids all over it, or whatever. If you're into the actual
brand, and no other leggings will suffice, you may need to go the route of providing them yourself (since Lululemon is on the expensive side of things as far as leggings go, and people won't want their valuable clothing treated roughly, just like fancy lingerie).