So Slime DIY - スライムシェイカー 3個パック カラーチェンジ

This was surprisingly easy to use—no mess at all. The color-change effect kept my daughter entertained for a solid hour as she mixed the confetti and glitter in.

My kids were skeptical at first, but the color-change reaction when we mixed the two slimes together genuinely surprised them. The confetti and surprise figurines were the highlight, and cleanup was way easier than I expected for a DIY kit.

The confetti and glitter mix in evenly without clumping, which is rare for kits like this, and the surprise figurines were a fun little bonus for my niece. She’s made three batches already and the color shift still works every time, so it’s held up better than I expected for the price.