I use Amazon.com to send toys to dgs (4 years) for direct delivery in the USA. That way I can send heavier toys such as lego, transformers, basketball hoop for the wall etc.
As mentioned previously I also like to send a package for the personal touch. Up to 2kg can go for up to £24 pro rata. So I shop very carefully with regard to weight, always on the lookout.
This year I've sent a beautiful hand crafted scarf and hat, They are featherlight and presented in the crafter's printed box with crafter's 'card'. Also a leather coin tray made of leather hide which is metal riveted in the corners to make it into the square shape. A cast iron bottle opener forged locally with the name of the blacksmith. And an aran cardigan and matching bobble hat for dgs (4) together with a couple of T shirts depicting local events.
Just scraped in under the 2kg and was able to pack spaces with Tayto crisps which are made locally.