Song Help Request help with circus theme

Hope someone can help, going away with a few lads from my school days (40 years ago) and we used to make up a song (wont tell you the lyrics as quite expletive) but they used the first few chords of the circus intro theme, you know when a clown comes on, da da da de dad da da de de, la la la la...la la la la la. None of them know I can play a couple of tunes on the uke so was hoping someone could give me a couple of chords so that i can play along when they sing. It doesn't have to be very accurate, just need sot create a little bit of a melody. They will be probably be too inebriated to tell if is good or not. Two or three chords will suffice, if anyone can help great. I'm comfortable with messing around with various strumming patterns. I have tried but don't have the musical ear or knowledge to pull it off. Many thanks

If one of the composition "Vjezd gladiatoru".


So just play the chords D, A7, D.
And at the end of a musical phrase as chords C#, F#m, C#, A7
and and second end of a musical phrase E7, F7, A7, D