Grout Bag. Can be used with thinset for tiny detail work, but is especially great to keep the grouting process neater and cleaner. They have used an cake icing nipple with the latex grout bag.
'Baby Crap… I Used To Be Fun' Tote Bag. Each bag has been lovingly hand screen printed and designed in London and it makes a fun gift, or of course, a treat for yourself!
M-D Building Products Grout Bag
Easy Tuck Point Using a Masonry Grout Bag - YouTube
Barwalt Tile Grout Bag WithTwo Tips
Pro tips for installing veneer stone
General Shale | Brickweb - apply with wall adhesive then use grout bag to fill joints
How to use a grout bag Grouting veneer stone Part 1 - YouTube