Recently, since flash has been shut down, I have been getting around this by setting my system clock to a year ago and running the SWF file in SWF File Player (http://swffileplayer.com). Source: about 3 years ago

A pocket synthesizer/loop device example. Source: 7 months ago

The circuit board thingy next to it is a Teenage Engineering Pocket Operator PO-33KO - which is a mini sampler/sequencer: https://teenage.engineering/products/po. Source: about 1 year ago

However, it also sucks that a lot of other companies tend to price-out newcomers. But that said, and I've noticed people are quick to forget in this kind of conversation: a lot of those same companies have gear for under $100 (yes, even Teenage Engineering). I know pro-composers/music producers who use this stuff professionally and swear by them. Source: about 1 year ago

Beyond a toy like that, there's also standalone music making gear that might be for fun for kids (and adults) to play with and probably won't hurt your wallet that much, specifically the Pocket Operator line of synthesizers. Source: about 1 year ago

On left is a rack of Volcas - looks like a Sample, Bass and Mix. Below that is a Model:Samples from Elektron. To the right of those is a mini rack of Teenage Engineering Pocket Operators. Source: about 1 year ago