I recently finished an Imtrav tour in Bangkok and the group all got together during the trip and bought t-shirts from a local guy that we could all sign with felt tip pens and keep as a great momento of our time together. I spoke to our tour leader and asked why your company don't sell t-shirts for this purpose, he said that now Imtrav are going to have t-shirts available for sale to groups! This is a great idea especially if you want funny and loving comments from your new mates and fellow travellers. I asked the tour leader if he would send me one once they are available. He said they should be available any day now. Thats great!