I had have also posted a tutorial here about using the Elmer's Washable School Glue, I didn't buy any special bottles or application tips. I did not like how poly batting worked, but it did adhere. I use the squiggly line method and I have found that by adding 1 part water to 9 parts glue - it squeezed out better. I had no trouble FMQ on my Husky 830 and everything washed out in warm water. I have tried the home made spray glue using flour, water, salt and rubbing alcohol and it worked like a charm
Good luck with which ever method you chose.