When I did my Latihan Ikhtisas, it was quite common for me to buy my own teaching materials and stationery that I needed for class activities like mahjung paper, permanent markers, coloured papers, motivation stickers, stationery like pen, pencil etc. that I used as a reward, and not forgetting chocolates that I always have in stock as an instant reward.
Fortunately, even though I was undergoing my Latihan Ikhtisas, yet my monthly salary was still the same (minus no allowance given for Latihan Ikhtisas). So, I didn’t feel the pinch when I had to spend on such things. But things might be different for those who are undergoing their teaching practicum (undergraduate students). A news article wrote about this issue. You may find the article HERE.