Yes, there are! When we had baby walker hunt last year I was able to see and check it myself. I almost decided to go for it but I realised that it's not the one I like for my baby. It has this rocking part thingy which doesn't please me so we let go. But the design is cute tho, it's red and has Minnie and Mickey mouse on it. Other Disney design would be Winnie the Pooh which is also good. :) You might wanna check the baby walkers which are on sale in Lazada. Here's the items link: http://www.lazada.com.ph/shop-baby-walkers/
For sure there are Disney-themed walkers at SM Baby Company. We usually drop by this area every time we go to any SM branch, and I've seen a couple of choices for Disney characters. We just opted for Chicco though.