Ooo I have tried a lot of the foods mentioned here! Not the marmite truffle exactly but have definitely had Vegemite and can confirm it does divide people. A lot of the time I see people eating a tablespoon straight out of the jar to try it and I am like ??? No wonder you hate it because you're eating it by itself and you ate like 10x the recommended serving :') Pocky is very nice too and so are a lot of the Kit Kat flavours - I think I must have gone through multiple bags of matcha Kit Kats when I went to Japan.
I've always wanted to try a lot of the popular candies in America / the UK and see if they were any different to what we have at home. I enjoyed trying a bunch of random candies when I was in the US (Swedish Fish, Whoppers, Reeses, pop tarts, twinkies etc.) Also my friend sent me a bunch of the candy they eat in the UK but it turns out its basically what we have at home w/ the Cadbury and Lindt - there were wine gums which I was like What are those???? but they also sent some nice Italian candies! I also remember finally getting to try Bertie Bott's when I was younger and getting 6 bad flavours in a row. Hmm not sure what will be next on the list but am down to try a lot more of the fun/??? candies and desserts :D