I recently purchased the Lestiour 50/100 Pack Colored Ping Pong Balls Bulk 2.4g, 40mm Entertainment Table Tennis Balls for Kids, Pong Balls, DIY Games Fun Arts and Learning Activities 50pcs from Amazon and I think it's a great product! The ping pong balls are perfectly round with a matte finish that makes it easy for writing or crafting activities as well as making them suitable for playing table tennis too. They are made from high quality pp plastic which makes both corrosion resistant and flexible but also completely safe to use in any age group - even my kitty likes them!
The range of colors you get is absolutely amazing: all the basic shades plus some nice neon ones too – enough to enhance your creativity while still being able to play lots of games like beer pong!. All packs come with 50 balls so there’s plenty included if you need more than a few; I used mine when decorating my birthday party room and they were perfect! Overall this pack is an awesome buy especially if you're looking for something versatile that can be used in multiple ways – arts & crafts, parties and maybe even day-to-day fun with pet homes too. A definite recommendation from me!!