This lotus flower lamp should fit tea lights under 37mm in diameter.  I've tried several brands, and they all seem to fit so far.  The flower portion is a slight press fit into the base.  Matte white PLA worked well for the flower, it has a good level of light transmittance - really curious how it would look in different colors!  Pictured here with walnut wood PLA for the base.

[UPDATE 4/4/2025] Based on feedback, I revised the standard print profile to scale the model 104% to fit more standard tea lights!  It should now fit 38mm diameter tea lights.