Sorry, but there is no facility to pre-order your shopping with BA. Your colleague may be able to order what she requires from ba.com, many of our onboard items are available to purchase online for delivery to UK addresses. Failing that, I would recommend purchasing the glasses on the outbound sector (if it is ex UK) as we carry full stock, are unable to uplift items away from base and may sell out of the item you require.

If you are concerned about forgetting, then just let the cabin crew know which item you require (preferably written down!) as soon as you can and they will make sure you don't forget!