This is going to be a kind of dictionary without translation. There is a picture and a few names of it in different languages (depending on the number of participants from different countries). Topical means that the pictures and thus the words will be arranged in topics, e.g. "Professions", "Animals", "Seasons and Weather" etc. This is why it's multilingual, picture and topical. I'm sure the pupils will like the idea because: 1) it's easy to do and fun; 2) they will be glad to share their native language, and 3) they will find interesting to compare the names of the same objects in different languages. Who knows, maybe they'll do some interesting linguistic discoveries! I see MTPD as a pdf-book but you might offer some more interesting tools. I'm looking for a co-founder and partners who speak different languages. However, if only English or Ukrainian is available for you, we may just do different parts of the book, e.g. different topics.