I could only find references to earlier periods, not the Late Iron Age. For instance, check this out:

http://minervamagazine.co.uk/archive_pdfs/2008_Vol_19_03.pdf

The copper must have come from Cyprus as Crete has none. However, the Cretans (Minoans) were travelling far and wide from before the Bronze Age and were even trading bronze artifacts made in Northern Italy (Terramare) before the dawn of the Iron Age.

I wonder if any of the numerous lavrys found at Arkalohori in Crete actually belong to the Iron Age.

Vasiliki Kassianidou from the University of Cyprus (academia.edu) may be able to give you more information on your subject.

I cannot think of any specifically Cretan examples from the Late Iron Age.  However, it must be noted that the form is in common use in other parts of the Eastern Mediterranean at the time, including Greece, the Near East and even Egypt, there is a fine bronze example on display at Swansea University's Egypt centre.  The problem that you may be running into is the one touched on by Michael Issigonis when he wondered whether any of the Arkalohari finds were actually of later date.  The problem is one of how scholars attribute a date to an artefact.  If an artefact is well known to a scholar as being common in their period of interest they will tend to attribute it to that period regardless of any other possibilities.  I encountered this problem 20 years ago when working on 6th century CE spearheads, in one case I was able to make a strong case that a broken spearhead attributed to c.600 was actually a mid 17th century one probably deposited in 1643.  Given this I would suggest that if you have time your best option would be to deconstruct the biases of the authors of the reports to see if they have allocated some axes to the wrong time period, this often appears as claiming that an artefact must be residual in the layer in which it is found since such objects are diagnostic of an earlier time period.

Thank you so much everybody for your answer!

Actually, these double-axes are a late phenomena in Balearic Islands and it seems a local phenomena, because I can not find exact parallels. Finally, I guess that the problem is not with the object, but more with the lead isotopes caracterization.

Sorry Laura I didn't read your initial question properly, I assumed that these were functional artefacts, are we actually talking about models as votive offerings, if so might this be less a Mediterranean phenomenon and more a European one since such 'votive' miniatures are known from the 'Celtic', a tradition which continues into the Roman period, a second possibility if we are talking of miniatures is the use as heads for pins made from organic materials now decayed