Just thought I'd share a website with you guys - www.kids-pyjamas.co.uk
They deliver overseas and have cheap kids sleepwear, t-shirts, underwear etc. Stock changes all the time and they have a sale on now - Thomas PJ's etc from £2.99. I have used them before in the UK and they were pretty good - sometimes the clothes aren't the best quality, but are no worse than here, lol!!
Worth a look anyway,