This is a game of Dobble made using one of the generators I found on ALTopedia (linked on the left).
This is a basic game using nouns covered in elementary school. It could be a good bit of fun in JHS. I play the English version with my adult friends and we get a good kick out of it.
Each card has exactly one match with every other card. Divide the stacks into equal amounts and distribute to the players. There should be one card left to play in the middle. Turn over the centre card and have students find their match. Once the quickest person has found a match, they must shout their match and place their card on top (ie "CAT!"). Then, students must find a match with that card. Do this until a player runs out of cards and is determined the winner. Carry on playing for 2nd and 3rd place etc.
The problem with making them using this generator is that transparent images create a black background. If you are using the generator yourself, keep this in mind. Irasutoya images are all transparent so I had to search Google far and wide. You can reduce the number of pictures (for 一年生 when learning colours) with this generator. 8 is the maximum.
The deck I have made has 8 images per card.
Have fun and enjoy your deskwarming!