When you go back to IKEA, there's tons of stuff, that can be used for hamsters:
the Asker (kitchen section) as a ceramic hideout,
the Glimma or Fyrkantig tealight holders as food/water bowls,
the Förvar candy jar as sand bath/digging glass,
the large Mixtur oven bowl as sand bath for dwarfs,
the Knuff or the Bekväm spice shelf (upside down) as little level,
the Moppe/Fira mini drawers to build little houses/hideouts/small digging boxes from,
the Pränt box as a large digging box,
the Krus series food storage boxes to store hamster food and treats (guaranteed moth proof),
the Idealisk sieve to clean out pee clumps from the sand bath,
the Detolf or biggest Samla as cages,
... I'm sure I've forgotten some things but those are the ones that come to mind off the bat.
Happy shopping and don't overdraw your bank account