Finally I painted it and glued the LEGO plate on the table. My kids love their LEGO table with play tray.
Clever ideas and hacks for your IKEA Furniture
10 best IKEA and LEGO storage ideas - IKEA Hackers
BUILD YOUR OWN ACTIVITY TABLE - IKEA HACK
IKEA Trofast LEGO Table Conversion : 7 Steps (with Pictures) - Instructables
DUNDRA Activity table with storage, white/gray - IKEA
Ikea Hack-DIY Lego Table - House of Fancy
The Best LEGO Table (IKEA HACK) - Whisking Mama, Recipe
IKEA Hack LEGO Table: How to DIY a Fun & Simple Duplo Table
Easy IKEA hack: LEGO table & storage (folds up!)
IKEA Furniture Ideal for Lego Storage - Me And B Make Tea