Can you recommend some good stores for educational toys and flash cards for toddlers?

I made my own flash cards actually. Just simple A4 size papers and I write in Bold with red markers. Just simple daily words that we often use. I also draw red dots for simple maths. I follow the way Glen Doman flash cards did theirs. You can get thicker papers if you like. I did it for my boy and now reuse it for my lil girl