Myshka-Ukhtyshka (Happy Bear & Happy Party) organises children's parties with entertainers in Budapest: birthdays and other kids' events led by animators. Parties are hosted in Ukrainian or Russian, and the WhatsApp contact is a Ukrainian number. They come to your venue.
Kotok Project is a kids' events agency working in Kyiv, Budapest and elsewhere in Europe: birthday parties, shows and costumed entertainers. The page is run in Ukrainian. There is no fixed address in Budapest; parties take place at a venue the client chooses.
Party Boom Budapest runs children's parties in Budapest with entertainers in character costumes — for example a Panda who hosts birthday guests. Posts are published in Ukrainian. No fixed address is listed; the entertainers come to the party venue.