I went to the Toronto concert (July 21) and this is all the info I can tell you about what I saw at the merch table!
Everything was the same price as online except for certain items:
Rainbow Prism T-Shirt - $45
Portrait T-Shirt - $40
Prism Tye-Dye T-Shirt - $55
Cherry Blossom Junior T-Shirt - $50
Wildflower T-Shirt - $45
Eye of the Tiget Satin Jacket - $200
Tour Program - $30
Roar Poster - $20
Phone Case - $20
Black Hoodie - $75
Hologram Backpack - $65
Also, since I went on the third of three nights, and there was a lot of merch that was missing because it was all sold during the first two nights. I didn't see the tye-dye hoodie, the backpack, the lenticular poster, the "Heaven is Jealous" tank, or the "This Is How We Do" tank. I might have just missed looking at it though.
These pictures were taken from Twitter of the first night at the Toronto concert, when they had a full stock of merch, and hadn't sold it all by the third show.https://pbs.twimg.com/media/Bs8dmcuIAAA0J_q.jpg:largehttps://pbs.twimg.com/media/Bs4JXyqCAAEh61Z.jpg:large
P.S., to anyone thinking about buying the tour book AND the stickers, I wouldn't recommend it, just because I found out the tour book comes with a very similar sticker sheet also!
Someone asked me about the stock for the Kitty Purry doll, and they had about 2 at every merch stand, and they had to take mine off from the display. However, I'm not sure if it's because they carry very few of them at the show, or if it's because they sold the majority of them during the first two nights. It's not super hard to get though. I bought mine during the Capital Cities set, and they still had them!