DMC thread (muliini from the French mouline) is hard to find. It is expensive when you do find it and the shops don't always carry every color. There is a mail order only shop in Hamenlinna that has some colors. (
http://www.emmuli.fi/index.php). There is also an excellent shop in Joensuu -
http://www.joenlanka.com/ . If you contact them with the color(s) you need, she will work it out for you. They do not have a shopping cart online.
Anchor muliini I can get even in Eura in a tiny lankas shop. Again, most colors, not all. The fabric shop in the same area carries Mayflower thread - something I have not found any conversion charts for that are not in Russian. I believe it to be made in Denmark, but cannot confirm that. It is a little bit stiffer, and with a lot fewer colors. It is better than nothing when it comes to feeding this addiction.
Crochet thread is often called helmilanka, or perle cotton. I have found that virtually everywhere as it is used for doilies and tablecloths. Any yarn shop should have this thread along with any missing hooks. I have seen this in Prisma in Rauma along with Vapaa Valinta.
You are more than welcome to contact me directly for more info. I work on this every day here, so I do have some information that may be of assistance. While I can order from the UK, I try very hard to always support my local shops first. It's a bit of a bother at times, but it is so much better for the local economy to shop here at home.
Hope this helps.
Julie
Kauttua
http://www.myneedlessong.com/