In Germany there's Die Partei (die Partei für Arbeit, Rechtsstaat, Tierschutz, Elitenförderung und basisdemokratische Initiative (Party for Labour, Rule of Law, Animal Protection, Promotion of Elites and Grassroots Democratic Initiative). It was founded in 2004 by the editors of the German satirical magazine 'Titanic' and it's not really frivolous as its primary aim is to parody other mainstream parties (such as the right-wing Alternative für Deutschland, AfD) to highlight problems in the political system. It has nevertheless voiced, albeit very much tongue-in-cheek - some fairly outlandish policies, such as suggesting that the Berlin Wall be rebuilt and East and West Germany be once again separate states; that a wall should be constructed completely encircling Switzerland to cut it off from the rest of "democratic" Europe; that Germany should declare war on Liechtenstein, probably for similar reasons; and that fracking should be extended to the rotund politicians Sigmar Gabriel and Peter Altmaier, to produce cheap gas.
Despite starting out as a purely satirical party intended to gather protest votes, Die PARTEI has since adopted some mainstream policy positions (generally they are pro-environmentalism, anti-authoritarian, pro-Europe, and generally left-leaning). In 2014 they actually won a seat in the European Parliament (with 0.6% of total German votes), when the candidate, with perhaps a nod at Nigel Farage's UKIP pointed out that they were "not the craziest party in the European Parliament". Then in the 2019 elections they gained a second MEP (with 2.4% of German votes).